问题如下：
Deflation is most likely to be associated with:
选项：
A.a shortage of government revenue.
B.substantial macroeconomic contraction.
C.explicit monetary policy to combat inflation.
解释：
B is correct.
Deflation is connected to a vicious cycle of reduced spending and higher unemployment.
考点：Deflation
解析：一国出现Deflation，最有可能的解释是发生了经济收缩的情况。
我看老师有说到C选项是紧缩的货币政策是不对的，哪里写的是紧缩呢，谢谢
