问题如下：
Investors should insist on learning about the positions of hedge funds because
选项：
A.They want to trade ahead of the hedge fund.
B.They do not understand the trading strategies behind the positions.
C.They want to aggregate the risk of hedge funds with the rest of their portfolio.
D.They receive the information from the prime broker anyway.
解释：
C is correct. Risk aggregation is an important reason for investors to learn about the positions of their investments in hedge funds. Answer a. is incorrect because front-running the hedge fund would be a reason not to disclose position information. Answer b. is incorrect because misunderstanding the trading strategies would be a reason not to require position information. Answer d. is incorrect because they do not receive position information from the prime broker.
b我觉得是对的，不懂所以才要去学习了解，了解清楚了才能决定下一步的投资策略，比如要继续持有还是决定赎回啊
