NO.PZ2023010401000122
问题如下：
In an effort to influence the economy, a central bank conducted open market activities by selling government bonds. This action implies that the central bank is most likely attempting to:选项：
A.contract the economy through a lower policy interest rate.
B.expand the economy through a lower policy interest rate.
C.contract the economy by reducing bank reserves.
解释：
Selling government bonds results in a reduction of bank reserves and reduces their ability to lend, causing a decline in money growth through the multiplier mechanism and hence a contraction in the economy.
中文解析：
出售政府债券会导致银行准备金减少，并降低它们的放贷能力，从而通过乘数机制导致货币增长下降，从而导致经济收缩。
A错在不是通过一个低的利率？是因为利率低没人买？
