问题如下：
Which policy alternative is most likely to be effective for growing both the public and private sectors?
选项：
A.Easy fiscal/easy monetary policy.
B.Easy fiscal/tight monetary policy.
C.Tight fiscal/tight monetary policy.
解释：
A is correct.
If both fiscal and monetary policies are "easy," then the joint impact will be highly expansionary, leading to a rise in aggregate demand, low interest rates, and growing private and public sectors.
考点：Interaction of Monetary and Fiscal Policy
解析：在 easy monetary policy 的条件下会产生较低的利率，这有利于私人投资的发展，同时公众部门的投资也因扩张财政政策而增加，所以应该选A.
老师问下 扩张的财政政策比如G增加 不是会有挤出效应吗 不利于私人部门 为什么选a啊
