问题如下图：
选项：
A. 
B. 
C. 
解释：
本题通过price level decrease的题意就可以推出 negative inflation rate，有这么简单吗？？？
还是有什么复杂的推导机制？
NO.PZ2018062003000131 问题如下 If the prilevel anmoney supply substantially crease, the inflation rate is: A.slowly rise B.negative C.increase higher B is correct.flation is finea sustainecrease in aggregate prilevel, whicorrespon to negative inflation rate.考点Inflation如果物价水平下降，通胀的数值就是一个负数，也称作flation 如题
NO.PZ2018062003000131 问题如下 If the prilevel anmoney supply substantially crease, the inflation rate is: A.slowly rise B.negative C.increase higher B is correct.flation is finea sustainecrease in aggregate prilevel, whicorrespon to negative inflation rate.考点Inflation如果物价水平下降，通胀的数值就是一个负数，也称作flation money supply substantially crease这句话是什么意思呢，突然忘记了
不是很懂呢，讲义里不是只说了price下降吗没说货币供给，为啥这两个同时下降inflation rate 小于0呢，谢谢
