大全test18-9,谢谢各位了。。。

fengchen318

Technically a given category of insurance policy is underpriced（价格偏低） if, over time, claims against it plus expenses associated with it exceed total income from premiums. But premium income can be invested and will then yield returns of its own. Therefore, an underpriced policy does not represent a net loss in every case.
The argument above is based on which of the following assumptions?
(A) No insurance policies are deliberately（故意的，不慌不忙的） underpriced in order to attract customers to the insurance company offering such policies.
(B) A policy that represents a net loss to the insurance company is not an underpriced policy in every case.
(C) There are policies for which the level of claims per year can be predicted with great accuracy before premiums are set.
(D) The income earned by investing premium income is the most important determinant of an insurance company’s profits.（E）
(E) The claims against at least some underpriced policies do not require paying out all of the premium income from those policies as soon as it is earned.
 文章没太读懂。。。求解释。。。谢谢啦~