问题如下：
Monetarists are most likely to believe:
选项：
A.there is a causal relationship running from inflation to money.
B.inflation can be affected by changing the money supply growth rate.
C.rapid financial innovation in the market increases the effectiveness of monetary policy.
解释：
B is correct.
By definition, monetarists believe prices may be controlled by manipulating the money supply.
考点：货币学派
通胀与货币供给存在鲜明的关系，货币的超发，会引发价格的上涨，从而导致通货膨胀。所以B正确。
相比较B选项，A选项把关系说的比较模棱两可，不透彻，所以选B不选A。
无限制的金融创新会弱化金融监管，从而诱发金融危机，不利于经济的健康发展，所以C不正确。
Notes 上说的是：Monetarists believe the variations in aggregate demand that cause business cycles are due to variations in the rate of growth of the money supply, likely from inappropriate decisions by the monetary authorities. Monetarists believe that recessions can be caused by external shocks or by inappropriate decreases in the money supply. They suggest that to keep aggregate demand stable and growing, the central bank should follow a policy of steady and predictable increases in the money supply.
这里说的是 inflation，所以以经济周期跟 inflation 是可以划等号联系起来的么，在这个题目里边？
