问题如下：
If an investor is risk aversion, the risk-return relationship is most likely to be?
选项：
A. negative.
B. neutral.
C. positive.
解释：
C is correct
If the investor shows risk aversion, the risk-return relationship is positive. When risk increases, investor requires higher return to compensate the additional risks.
risk return relationship是什么意思？斜率？
