Which of the following statements about the short sale of a stock is least accurate?
A. The short seller must pay any dividends due to the lender of shares.
B. A stop buy order would enable a short seller to minimize potential losses.
C. Short sales involve time limits for returning the shares borrowed to the lender.

为什么选C啊，难道卖空股票的人就没有偿还的时间期限吗？

一般說是借款人要求還的時候還的，或是其他情況。

看Notes或書呀，寫的很明白。