问题如下：
Which of the following is an example of an affirmative debt covenant? The borrower is:
选项：
A.prohibited from entering into mergers.
B.prevented from issuing excessive additional debt.
C.required to perform regular maintenance on equipment pledged as collateral.
解释：
C is correct.
Affirmative covenants require certain actions of the borrower. Requiring the company to perform regular maintenance on equipment pledged as collateral is an example of an affirmative covenant because it requires the company to do something. Negative covenants require that the borrower not take certain actions. Prohibiting the borrower from entering into mergers and preventing the borrower from issuing excessive additional debt are examples of negative covenants.
记得老师说到过有个特殊条件是没有写着禁止什么，但是是negative的条款，请问是哪个？请问这个对应哪几页ppt，翻了好几遍讲义没有找到？
