I was confused between A and E. I understand why A should be the right answer but I am not sure why E is incorrect.
Thanks.
Until she was given tenure at the college, Susan was considered an average teacher. It is clear that if her receiving tenure was justified, then Susan was much better than average or very loyal. Soon after she was awarded tenure, however, it was shown that she was not better than average. Thus, one is forced to conclude that Susan must have been very loyal.
Which one of the following states an assumption upon which the argument depends?(A) Susan being given tenure was justified.
(B) Susan was a teacher at a college.
(C) Giving tenure to someone who is very loyal would be justified.
(D) Anyone who gets tenure is very loyal.
(E) If someone is an above average teacher or very loyal, then they deserve tenure.
Source: Nova GMAT
Difficulty Level: 700
As per me, E is incorrect because the word used here in the argument is "deserve" which makes the argument out of scope. We just know what justifies a person being given a tenure.
Difference between justified and deserving is that justified is a post de facto thing where we are tracing back why that person got this thing. But deserving is more from the time when that person is in the race of getting that tenure where we can have many candidates and that is not the main focus of the argument.