NO.PZ2018070201000105
问题如下：
Based on the capital asset pricing model, please choose the security whose expected return will be impacted most by a decline in the expected market return.
选项：
A.Security 1.
B.Security 2.
C.Security 3.
解释：
C is correct.
A security with higher beta will be more sensitive to a change in the expected market return, so a decline in the expected market return will have the greatest impact on the expected return of Security 3.
为什么不是A？我的理解是SD越大，风险越高。这样更有可能有个下降的趋势啊
