单选题 According to the text, making monetary policy changes

A、 is comparable to driving a car.
B、 is similar to carrying out scientific work.
C、 will not influence the economy immediately.
D、 will have an immediate impact on the inflation rate.

【正确答案】 C

【答案解析】[解析]文章第一段提到了：And there are long，variable lags before policy changes have any effect on the economy．财政政策对经济的影响要远远落后于经济的变化。即财政政策的变化不直接影响经济。故应选C。