NO.PZ2015121802000001
问题如下：
If an investor prefers diversification more than investing in a single security, he or she most likely agrees the following statement?
选项：
A.
Diversification will help to increase the expected rate of returns
B.
Diversification will help to reduce the volatility of returns
C.
Diversification will help to increase the probability of high returns
解释：
B is correct
It is more likely for a diversified portfolio to reduce the risk, which is described as the volatility of the portfolio’s return. That means very high or low returns become less likely for a well diversified portfolio. However, diversification is less likely to provide an investor a higher return than investing in a single risky security.
C为什么不对 麻烦解释一下
