garnet和renco的health care

VincentFSJ

6.    (24353-!-item-!-188;#058&001207)

Which of the following mostlogically completes the passage?

Garnet and RenCo each providehealth care for their employees.  Garnetpays for both testing of its employees' cholesterol levels and treatment ofhigh cholesterol.  This policy savesGarnet money, since high cholesterol left untreated for many years leads toconditions that require very expensive treatment.  However, RenCo does not have the samefinancial incentive to adopt such a policy, because __________.

(A) early treatment of highcholesterol does not entirely eliminate the possibility of a stroke later inlife

(B) the mass media regularlyfeature stories encouraging people to maintain diets that are low incholesterol

(C) RenCo has significantly moreemployees than Garnet has

[url=](D) RenCo's employees are unlikely to have highercholesterol levels than Garnet's employees[/url]

[url=](E) the average length of time an employee stays withRenCo is less than it is with Garnet[/url]

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我明白D为什么是错的；不太懂E为什么是对的，因为我考虑到的是：万一garnet所雇用的人反而是犯病高峰期的年纪呢？那么E的解释我觉得不是很好；（当然这里只是要支持renco没必要像garnet这么做，在ABCD都是无关选项的情况下随便支持一下就算加强了吗？）