XDF逻辑讲义里的一道题

bonuses at DSR industries cannot be awarded unless profits exceed a 10% return on stock-holders' 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

答案就是a。我的问题是，假设好像跟10%的投资回报率没什么关系，好像不看第一段也能得出答案，那问什么还要给出第一段呢？同时，题干是不是暗示经济衰退年份的利润与不是经济衰退年份的利润比较，因为题干只在后半句提到了a year of peak profits。。。

第一段是background 没有用的

没用阿。。。写出来总觉得很迷惑人似的。。。