求助，关于HeirPrep第二部分101题的问题

xixibie945

Two computer companies, Garnet and Renco, each pay Salcor to provide health insurance for their employees.  Because early treatment of high cholesterol can prevent strokes that would otherwise occur several years later, Salcor encourages Garnet employees to have their cholesterol levels tested and to obtain early treatment for high cholesterol.  Renco employees generally remain with Renco only for a few years, however.  Therefore, Salcor lacks any financial incentive to provide similar encouragement to Renco employees.

Which of the following, if true, most seriously weakens the argument?

A. Early treatment of high cholesterol does not eliminate the possibility of a stroke later in life.

B. People often obtain early treatment for high cholesterol on their own.

C. Garnet hires a significant number of former employees of Renco.

D. Renco and Garnet have approximately the same number of employees.

E. Renco employees are not, on average, significantly younger than Garnet employees.

笔记上说他是属于因果模式，
但我认为是 类比模式，
好像G 和R 的类比， 默认其他都差不多， S认为R 的人在职时间短，则认为没有财政支持他做ET。
问题要削弱，实际就是要支持R 也要做 ET，
那么就找 G 和R 有相似的地方 就可以了，也就是C。

不知道对吗,@Heir?