A为什么不对请问

问题如下：

Which of the following is a likely consequence of Kai’s approach to managing his finances?

选项：

A.

Concentrated portfolio positions

B.

Forgone opportunities to reduce risk by combining assets with low correlations

C.

Excessive trading

解释：

B is correct.

The most common consequence of mental accounting is neglecting opportunities to reduce risk by combining assets with low correlations, because each account’s asset allocation is examined discretely. Offsetting positions across accounts, or an overall inefficient allocation with respect to risk, can lead to suboptimal aggregate performance.