可以解释一下这个题吗， A为什么不选

NO.PZ2023071902000026问题如下 QuestionUnr whieconomic contions is quantitative easing (QE) most likely to aiin the recovery of a struggling economy? A.flationary trapB.clining bank reserves aneconomic activityC.Liquity tr SolutionIncorrect. A flationary spirrefers to a persistent anwisprecrease in the generpriinx, posing greater challenges for conventionmonetary policies compareto inflation. Onnomininterest rates are lowereto zero the monetary authority to stimulate the economy, they cannot further rece this stage, the contions for a liquity trcome into play. flation raises the revalue of bt, while falling prices mscourage current consumption, leang to recemananfurther flationary pressure. Consequently, a flationary \"trap\" mvelop, characterizesluggish consumption growth, falling prices, anrising levels of rebt.Correct. Quantitative easing (QE) is \"unconventional\" monetary poliapproach, operationally similto open market purchase operations but concteon a larger scale. Centrbanks create aitionreserves through QE, whicuseto purchase various assets. The intention is to stimulate lenng, leang to broar money growth an ultimately, increase in reeconomic activity.Incorrect. A liquity troccurs when the manfor money becomes infinitely elastimeaning the mancurve is horizontal, aninvials are willing to holextra money balances without any change in interest rates. In this extreme scenario, injecting more money into the economy will not further lower interest rates or impareeconomic activity, renring monetary polifully ineffective.Monetary Policy• scriqualities of effective centrbanks; contrast their use of inflation, interest rate, anexchange rate targeting in expansionary or contractionary monetary policy; anscrithe limitations of monetary policyA不正确的。通货紧缩螺旋式上升，是指一般物价指数持续而普遍的下降，它与通货膨胀相比，对传统货币政策构成了更大的挑战。一旦货币当局为刺激经济而将名义利率降至零，就不能再下调了。那么在这个阶段，流动性陷阱的条件开始发挥作用。通货紧缩提高了债务的实际价值，而价格下跌可能会抑制当前的消费，导致需求减少和进一步的通货紧缩压力。因此，通货紧缩的“陷阱”可能会形成，其特点是消费增长缓慢，价格下跌，实际债务水平上升。B正确的。量化宽松(QE)是一种“非常规”的货币政策手段，操作上类似于公开市场购买操作，但规模更大。中央银行通过量化宽松创造额外的资金储备，这些资金储备可以用来购买各种资产。其目的是刺激贷款，导致更广泛的货币增长，并最终增加实体经济活动。C不正确的。当货币需求呈现无限弹性时，流动性陷阱就会出现，这意味着需求曲线是水平的，个人愿意在利率没有任何变化的情况下持有额外的货币余额。在这种极端情况下，向经济中注入更多资金不会进一步降低利率或影响实体经济活动，从而使货币政策完全无效。 何老师讲 QE是用来治理流动性陷阱的最好办法呀？

NO.PZ2023071902000026问题如下 QuestionUnr whieconomic contions is quantitative easing (QE) most likely to aiin the recovery of a struggling economy? A.flationary trapB.clining bank reserves aneconomic activityC.Liquity tr SolutionIncorrect. A flationary spirrefers to a persistent anwisprecrease in the generpriinx, posing greater challenges for conventionmonetary policies compareto inflation. Onnomininterest rates are lowereto zero the monetary authority to stimulate the economy, they cannot further rece this stage, the contions for a liquity trcome into play. flation raises the revalue of bt, while falling prices mscourage current consumption, leang to recemananfurther flationary pressure. Consequently, a flationary \"trap\" mvelop, characterizesluggish consumption growth, falling prices, anrising levels of rebt.Correct. Quantitative easing (QE) is \"unconventional\" monetary poliapproach, operationally similto open market purchase operations but concteon a larger scale. Centrbanks create aitionreserves through QE, whicuseto purchase various assets. The intention is to stimulate lenng, leang to broar money growth an ultimately, increase in reeconomic activity.Incorrect. A liquity troccurs when the manfor money becomes infinitely elastimeaning the mancurve is horizontal, aninvials are willing to holextra money balances without any change in interest rates. In this extreme scenario, injecting more money into the economy will not further lower interest rates or impareeconomic activity, renring monetary polifully ineffective.Monetary Policy• scriqualities of effective centrbanks; contrast their use of inflation, interest rate, anexchange rate targeting in expansionary or contractionary monetary policy; anscrithe limitations of monetary policyA不正确的。通货紧缩螺旋式上升，是指一般物价指数持续而普遍的下降，它与通货膨胀相比，对传统货币政策构成了更大的挑战。一旦货币当局为刺激经济而将名义利率降至零，就不能再下调了。那么在这个阶段，流动性陷阱的条件开始发挥作用。通货紧缩提高了债务的实际价值，而价格下跌可能会抑制当前的消费，导致需求减少和进一步的通货紧缩压力。因此，通货紧缩的“陷阱”可能会形成，其特点是消费增长缓慢，价格下跌，实际债务水平上升。B正确的。量化宽松(QE)是一种“非常规”的货币政策手段，操作上类似于公开市场购买操作，但规模更大。中央银行通过量化宽松创造额外的资金储备，这些资金储备可以用来购买各种资产。其目的是刺激贷款，导致更广泛的货币增长，并最终增加实体经济活动。C不正确的。当货币需求呈现无限弹性时，流动性陷阱就会出现，这意味着需求曲线是水平的，个人愿意在利率没有任何变化的情况下持有额外的货币余额。在这种极端情况下，向经济中注入更多资金不会进一步降低利率或影响实体经济活动，从而使货币政策完全无效。 可以请老师一下flation trap和liquity trap吗？两者有没有关系？

NO.PZ2023071902000026问题如下 QuestionUnr whieconomic contions is quantitative easing (QE) most likely to aiin the recovery of a struggling economy? A.flationary trapB.clining bank reserves aneconomic activityC.Liquity trap SolutionIncorrect. A flationary spirrefers to a persistent anwisprecrease in the generpriinx, posing greater challenges for conventionmonetary policies compareto inflation. Onnomininterest rates are lowereto zero the monetary authority to stimulate the economy, they cannot further rece this stage, the contions for a liquity trcome into play. flation raises the revalue of bt, while falling prices mscourage current consumption, leang to recemananfurther flationary pressure. Consequently, a flationary \"trap\" mvelop, characterizesluggish consumption growth, falling prices, anrising levels of rebt.Correct. Quantitative easing (QE) is \"unconventional\" monetary poliapproach, operationally similto open market purchase operations but concteon a larger scale. Centrbanks create aitionreserves through QE, whicuseto purchase various assets. The intention is to stimulate lenng, leang to broar money growth an ultimately, increase in reeconomic activity.Incorrect. A liquity troccurs when the manfor money becomes infinitely elastimeaning the mancurve is horizontal, aninvials are willing to holextra money balances without any change in interest rates. In this extreme scenario, injecting more money into the economy will not further lower interest rates or impareeconomic activity, renring monetary polifully ineffective.Monetary Policy• scriqualities of effective centrbanks; contrast their use of inflation, interest rate, anexchange rate targeting in expansionary or contractionary monetary policy; anscrithe limitations of monetary poli可以一下AC为什么不对么

NO.PZ2023071902000026问题如下 QuestionUnr whieconomic contions is quantitative easing (QE) most likely to aiin the recovery of a struggling economy? A.flationary trapB.clining bank reserves aneconomic activityC.Liquity trap SolutionIncorrect. A flationary spirrefers to a persistent anwisprecrease in the generpriinx, posing greater challenges for conventionmonetary policies compareto inflation. Onnomininterest rates are lowereto zero the monetary authority to stimulate the economy, they cannot further rece this stage, the contions for a liquity trcome into play. flation raises the revalue of bt, while falling prices mscourage current consumption, leang to recemananfurther flationary pressure. Consequently, a flationary \"trap\" mvelop, characterizesluggish consumption growth, falling prices, anrising levels of rebt.Correct. Quantitative easing (QE) is \"unconventional\" monetary poliapproach, operationally similto open market purchase operations but concteon a larger scale. Centrbanks create aitionreserves through QE, whicuseto purchase various assets. The intention is to stimulate lenng, leang to broar money growth an ultimately, increase in reeconomic activity.Incorrect. A liquity troccurs when the manfor money becomes infinitely elastimeaning the mancurve is horizontal, aninvials are willing to holextra money balances without any change in interest rates. In this extreme scenario, injecting more money into the economy will not further lower interest rates or impareeconomic activity, renring monetary polifully ineffective.Monetary Policy• scriqualities of effective centrbanks; contrast their use of inflation, interest rate, anexchange rate targeting in expansionary or contractionary monetary policy; anscrithe limitations of monetary poli这题老师上课不就说了qe是用来对付liquity trap的吗