求助 plausibility

2-16. Advertiser: The revenue that newspapers and magazines earn by publishing advertisements allows publishers to keep the prices per copy of their publications much lower than would otherwise be possible. Therefore, consumers benefit economically from advertising. Consumer: But who pays for the advertising that pays for low-priced newspapers and magazines? We consumers do, because advertisers pass along advertising costs to us through the higher prices they charge for their products. Which of the following best describes how the consumer counters the advertiser’s argument? (A) By alleging something that, if true, would weaken the plausibility of the advertiser’s conclusion (C) By offering an interpretation of the advertiser’s opening statement that, if accurate, shows that there is an implicit contradiction in it 答案A，我选了C 我不明白的是，第二个人对第一个人是weaken其可行性（plausibility），还是发现一个内在的矛盾（implicit contradiction ）；不可行性（plausibility）一般用于recommendation，怎么可以用于对推理进行描述呢？