问题如下：
In the past, Jane has had a tendency to sell winning investments to avoid the risk of giving back gains. She also has had a tendency to retain losing investments even when there is little chance of them recovering in value.
The behavioral bias that Lennon’s past investment experience illustrates is best described as:
选项：
A. self-control bias.
B. mental accounting bias.
C. loss-aversion bias.
解释：
C is correct.
考点：Dealing with Behavioral Biases in Asset Allocation
解析：过早地卖出小幅收益的头寸，过久地持有损失头寸，属于loss-aversion bias。
是不是也是loss aversion。