NO.PZ2018070201000077
问题如下：
Which of the following is the optimal portfolio for a individual investor according to the capital market theory?
选项：
A.the combination of a risk-free asset and a risky asset with the highest expected return.
B.the combination of a risk-free asset and a risky asset with the highest indifference curve.
C.the combination of a risk-free asset and a risky asset with the highest capital allocation line slope.
解释：
B is correct.
Individuals' optimal portfolios is determined by different indifference curves, which delivers the highest utility. So CAL is tangent to the individual investor’s highest possible indifference curve.
看老师讲课的图里面indifference curve和CAL的切点上方还有很多条无差异曲线，这些上面的无差异曲线不是应更high么？还是说相切的那条线才是utility最大的，所以是highest的意思？
