if we say that commodity price follows a lognormal distribution ,we mean that over time:A. the natural logarithm of the price is normal distributed.

为什么这个答案是错误的？

不是说“if the random variable X is log-normally distributed, then Y=In(X) has a normal distribution.“ 所以我有点不明白为什么这个选项是错的。

谢谢大家。