The correct answer if choice E.
Lets first understand the passage:
As per John's literature professor:
- Ability to judge the greatness of literary works (A) can be acquired only after years of specialized training (B)
- i.e. B is a necessary condition for A
- Such Training (B) is required to become a literature professor (C)
- i.e. B is a necessary condition for C
- Vast majority of the reading public does not have access to such training (B)
Analysis: What can we infer based on the above data? Vast majority of the reading public do not have access to B
=> Vast majority of the reading public cannot become literature professors (B is a necessary condition for C)
Another Inference:
=> Vast majority of the reading public do not have the ability to judge the greatness of literary works (B is necessary for A as well)
Lets now look at the options.(A) John's literature professor can judge the greatness of works of literature accurately
Tricky option choice.
B (training) is necessary for A (ability to judge greatness) - does not imply B is the only necessary condition for A. All we can say is that in the absence of B, A cannot happen. But that does not mean that presence of B will lead to A.
Here, John's literature professor has had the necessary training (B) to become a literature professor (C). This does not mean that the training (B) is sufficient for her to be able to judge the greatness of literary works (A). All we know is that
B is a necessary condition for A, we do not know if B is a sufficient condition. Even with training, and despite being a literature professor, she may not have the ability to judge the greatness of literary works accurately.
(B) Anyone who is not a literature professor cannot judge the greatness of works of literature accurately
All we know is -
B (training) is must for C (to become a literature prof). That does not mean that every person who has done B has to necessarily become a literature professor. For all we know, there may be people who have done the training, but not become literature professors. These people will also be able to judge the greatness of literature works.
B is a must for C does not imply all who have done B must be C. For A (judge the greatness), one only needs to have B, not C.
(C) Specialized training like that received by John's literature professor should be more broadly available to members of the reading public
Irrelevant. Nowhere can we infer that such training should be more available. The passage does not talk about how things should be at all.
(D) Literature professors do not belong to the reading public
Vast majority of reading public do not have access -> some of the reading public may have access -> some of these people may do the training and become literature professors. So, this statement is not definitely true, and can be false. Cannot be inferred.
(E) The vast majority of the reading public is unable to judge the greatness of works of literature accuratelyCorrect.
B (training) is a must for A (ability to judge the greatness of literature). Vast majority of reading public do not have access to B (given). So, vast majority of the reading public will not be able to judge the greatness of works of literature.
Hope this helps.