5. Bonuses at DSR Industries cannot be awarded unless profits exceed a ten percent return on stockholders’ investments in the company. Higher profits mean higher bonuses. Therefore, bonuses in a year of general economic recession will be considerably lower than bonuses in a year of peak profits at DSR.

The conclusion above depends on the assumption that

(A) the firm will have relatively low profits in recession years

(B) the amount represented by a ten percent return on stockholders’ investments in the company will increase from year to year

(C) profits rarely exceed a ten percent return on stockholders’ investments in the company

(D) profits in excess of a ten percent return on stockholders’ investments in the company are all distributed in the form of bonuses（A）

(E) bonuses at DSR never drop to zero

我觉得E是正确的，Lower than peak 必须保证二者全不为零，A只是说了一个不需要重复的事实而已，请指教

呵呵,楼主没注意到,昨天也有个XD问了这个问题,我已经解答过了.

这里是A没错,文章的推导是bonuses收到10的佣金,公司的收入高,那么bonuses的收入也高.结论是bonuses的收入在经济recession的时候比peak的时候少.在这个推导的过程了,bonuses是没有直接关系的,至少文章里没总结给出.A就是起到了桥梁的作用吧recession和bonuese连接起来了.这样推倒就顺利了.recession>company profit low>bonuses收入少.