[求助]大全-Ⅱ-5 提问链接&搜索都没有

大全-Ⅱ-5.    According to an independent computer-industry analyst, the new Regent microcomputer is of high quality, is fast, and costs less than any currently existing competing model. It is reasonable to conclude, therefore, as the manufacturer’s prospectus does, that the Regent will quickly establish itself as a fast-selling, low-priced alternative to currently available microcomputers.

Which of the following, if true, would LEAST weaken the argument above?

(A) Many retailers already carry one or more low-priced microcomputer models and are disinclined to carry another.

(B) Several faster and lower-priced models of microcomputers will soon be introduced by other computer manufacturers.

(C) The Regent Corporation’s microcomputer can be used in conjunction with higher-priced microcomputers manufactured by other companies.

(D) Most of those individuals and companies that could be expected to make up the potential market for the Regent microcomputer have already filled their microcomputer needs.(C)

(E) The independent computer-industry analyst whose assessment was incorporated in the prospectus has used measures of quality that are not universally accepted by the computer-buying public.

我对这种LEAST weaken 的题目最拿不定了

E是不是怀疑了 independent computer-industry analyst说的话的有效性?

大家觉得除此之外其他选项是怎么WEAKEN原文的??

大家觉得除此之外其他选项是怎么WEAKEN原文的??

正像你说的，E是排除了有效性；A排除了Regent的市场，因此weaken；
B提出了faster,lower，will soon来weaken
D与A相似，排除了市场。
C与weaken无关

I got it!

Thank you so much!