og 156

Questions 156-157 are based on the following.

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 P.

156.

Which of the following, if true, would most strengthen the conclusion above?

(A) Company P manufactures products that are more hazardous for workers to produce than does Company O.

(B) Company P holds more safety inspections than does Company O.

(D) Company O paid more for new job-related medical claims than did Company P.

(E) Company P provides more types of health-care benefits than does Company O.

A is the best answer.

The passage’s statistical data support the conclusion, but give information about one year only and identify no factor that would cause a higher accident rate at Company P. By describing such a factor, choice A, the best answer, suggests that these data can support a generalization like the conclusion.

1Company P’s greater number of safety inspections (choice B) may simply indicate greater attention to workers’ safety.

关于B项，不明白？我认为是weaken结论，但ets认为无关？

请指教！