问题如下：
Which of the following examples is least likely an investment constraint?
选项：
A. Significant liquidity requirements in a short period of time.
B. Less tax rate on capital gains than on dividend income.
C. An overall return target of 10% annually.
解释：
C is correct.
An overall return target of 10% annually is an return objective.
这题目不理解考点，为什么这么炫
