问题如下：
Which of the following statement aboutrepurchase agreements is NOT correct?
选项：
A. Repurchase agreements or repos are matchedpairs of the spot sale and forward repurchase of a security.
B. The forward repurchase price of the securityis determined at the end of the agreement.
C. Repo investments pay a short-term rate withoutsacrificing much liquidity or incurring significant default risk.
D. In some cases, the repo agreements may alsorequest a margin call from borrowers. When collateral declines in value,additional collateral is needed, when market outperforms, excess collateral canbe withdrawn.
解释：
考点：对Repurchase Agreements的理解
答案：选项B描述错误，本题选B
解析：
B选项错误，在Repos中，未来的Repurchase price在期初就已约定好：Both the spot
and forward price are agreed now, and the difference between them implies aninterest rate.
repo investment不是收到interest么
