How will the right answer fit in terms of support and conclusion?

Only the right answer will accurately describe a flaw, in other words a reason why this support doesn’t establish this conclusion.

Highlight the main conclusion in the passage, if there is one:

the choice between seeing a specialist or a general practitioner for necessary physical therapy will not affect one’s chances of major improvement.

[SUPPORT]. [SUPPORT]. Therefore, [CONCLUSION].

Wow, what a terrible argument. The conclusion is making a comparison between specialists and GPs, even though their data mixed the groups together. No wonder they think there’s no difference. The right answer will call that out by addressing the same comparison.

Map the wording of the answers to the wording of the passage:

(A) …in bringing about any improvement does not differ

This is wordy as hell, but if you hang in there you’ll catch this changing the subject. The conclusion and all the support are only about “major improvement”. The author never says or implies anything about the difference in “any improvement”.

(B) …short-term as opposed to long-term treatment

This is the wrong comparison. We don’t care what the author overlooked about short-term vs. long-term, since the conclusion is only about specialist vs. general practitioner.

(C) …biased to report favorably on one of the two types of medical professionals…

This is getting the info in the passage wrong. The data didn’t compare “the two types of medical professionals”, it compared short and long-term treatment. They also didn’t “report favorably”, they either showed “major improvement” or they didn’t.

(D) …was equal to the number who saw a specialist.

The passage is comparing the percent of people who improved. It’s not relying on “the number of patients” at all. They wouldn’t need to be exactly “equal” anyway, that’s way too strong.

(E) …each tend to excel at treating a different type of injury

This is the only answer that brings in a difference between specialists and GPs, mapping right on to the comparison made in the passage. If this is true, then the choice definitely will “affect one’s chances of major improvement”.

(E) is the correct answer.