[求助]求助一道OG11-38,请NN帮忙啊~~~~

Companies O and P each have the same number of employees who work the same number of hours per week. According to records maintained by each company, the employees of Company O had fewer job-related accidents last year than did the employees of Company P. Therefore, employees of Company O are less likely to have job-related accidents than are employees of Company.

Which of the following , if ture would most weaken the conclusion above?

为什么答案是Company P considered more types of accidents to be job-related than didi Company O.

明白了，谢谢哈哈～～～