B选项为什么是对的

问题如下：

Which of the following is incorrect about the risk of an equity security? The risk of an equity security is

选项：

A.

based on the uncertainty of its cash flows

B.

based on the uncertainty of its future price

C.

measured using the standard deviation of its dividends

解释：

Some equity securities do not pay dividends, and therefore the standard deviation of dividends cannot be used to measure the risk of all equity securities