Which of the following most logically completes the passage?
Garnet and RenCo each provide health care for their employees. Garnet pays for both testing of its employees’ cholesterol levels and treatment of high cholesterol. This policy saves Garnet money, since high cholesterol left untreated for many years leads to conditions that require very expensive treatment. However, RenCo dose not have the same financial incentive to adopt such a policy, because ______.
e
A. early treatment of high cholesterol dose not entirely eliminate the possibility of a stroke later in life
B. the mass media regularly feature stories encouraging people to maintain diets that are low in cholesterol
C. RenCo has significantly more employees than Garnet has
D. RenCo’s employees are unlikely to have higher cholesterol levels than Garnet’s employees
E. the average length of time an employee stays with RenCo is less than it is with Garnet
为什么是答案e啊？高血脂会导致很多慢性病，所以经常性检测，即时发现和采取预防措施能减少得这些慢性病的几率。所以对于Garnet公司来说，投资在检测和预防上的小钱能省下将来治病的大钱。但是得慢性病不是几年的事情，除非这些员工长期在Garnet工作，否则一旦人员流动很大，几年就走的，检测预防的钱就打水漂了。因而，RenC不愿付检测费有可能是员工流动性强。
举个实际的例子，大的公司例如Shell的员工福利很好，一般会呆一辈子，那当然Shell希望员工健康，一来保证工作质量，减少换人的费用，二来年纪大了减少疾病的发生也可以减少公司的负担。
而流动性大的公司例如Mcdonald's一般都是短期员工，甚至都是年轻人，不太会得病，因而公司投资在预检的费用从单纯经济的角度来看是不合算的。
G 从长期考虑，给员工既检查又治疗
R从短期考虑，治好了，你没一会儿就跑了，为什么要给你治啊
E is the answer
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