This is an interesting question. To effectively solve CR, one must to analyze an argument's line of reasoning(LoR). Actually there are two arguments here, that of the governor’s and that of the passage author’s. LoR of the governor: deny college course --> make prison harsher --> reduce crime rate. LoR of the author: inmates who take courses will commit fewer crimes after release --> denying them course will lead to more crimes by them after release --> governor's action won't reduce crime rate.
Since the question ask for assumption of the author’s argument, only the author’s LoR is relevant. Now let's look at A, which says "Not being able to ... is unlikely to deter anyone from a crime ..." (不能读书不会deter任何人) You probably can already tell that this is not relevant to the author's LoR (although it's relevant to governor's LoR). So, choice A is not relevant. You don’t even needs to try deny test here. Now let’s look at C. C says "...inmates who chose to take courses were not already less likely ... to commit crimes after being released." Deny C, we get "...inmates who chose to take college-level courses were already less likely... to commit crimes after being released." In other words, denying them course will not lead to more crimes by them after release. This directly contradicts the author’s LoR and cause the argument to fall apart. So, C is a necessary assumption of the author. Two side notes: Deny test: "To test whether a statement is necessarily assumed by an author, one can try the denial test (DT): simply deny or negate the statement and see if the argument falls apart. If it does, the choice is a necessary assumption." -- from Kaplan.
The opposite of A is "Not being able to ... might actually deter some from a crime ..." (不能读书有可能deter一些人). 而不是 “Not being able to ... is likely to deter everyone from a crime ...” (不能读书有会deter所有人). See the subtle differences between them? Open to discussion. |