3. (B)
Question Type: Weaken
Ms. Garon worked as an assembly-line worker, requiring no special skills, and later became president of the company. Therefore, Acme offers unskilled workers excellent advancement opportunities. The glaring assumption here is that Ms. Garon was unskilled, simply because she was doing a job that did not require skills. Isn’t it possible for skilled workers to do unskilled work? (B) provides a sound explanation for why a skilled worker might have started at an entry-level position.
(A) if anything strengthens the argument by providing another example.
(C) also strengthens, if anything. If Acme promotes internally more than frequently than it recruits from other companies, it could follow that Acme offers excellent advancement opportunities.
(D) has no effect on the argument. To go from assembly-line worker to president in 20 years neither weakens nor strengthens the conclusion that Acme offers excellent advancement opportunities. We have no evidence to help us understand whether 20 years is a long or short time for such advancement. Furthermore, this answer choice ignores the issue of skill, which is essential to the conclusion.
(E) discusses only starting pay, and thus has no effect on the argument’s conclusion, which involves the notion of advancement.