og11-86 紫色

Since 1986，when the
Department of Labor began to allow investment officers’ fees to be based on
how the funds they manage perform, several corporations began paying their
investment advisers a small basic fee，with
a contract promising higher fees if the managers perform well．

(A)  investment officers’ fees to be based on how
the funds they manage perform，several corporations
began

(B)  investment officers’ fees to be based on the
performance of the funds they manage，several
corporations began

(C)  that fees of investment officers be based on
how the funds they manage perform，several
corporations have begun

(D)  fees of investment officers to be based on
the performance of the funds they manage，several
corporations have begun

(E)  that investment officers’ fees be based on
the performance of the funds they manage，several
corporations began

关于代词指代OG说：

while they would seem to refer to investment officers', grammatically it cannot because investment officers' is a possessive modifying fees, rather than a plural noun standing by itself. the sentence needs to be revised so that investment officers is a plureal noun.

这个解释应该怎么理解？

谢谢

有since的主句应该要用现在完成时的。

OG上面的意思是原文里的investment officers'是形容fees的，所以后面they不能指officers了，句子的语序应该倒一下，才能让investment officers变成是一个复数名词，they才能指代

明白了