(A) Questionable details provide the strongest support for an author’s main idea.
(B) Irrelevant details are unrelated to the point the author is making.
(C) Essential details are those that do not directly support an author’s main point.
(D) A good reader does not distinguish between relevant and irrelevant details.
supporting details is that the Questionable details provide the strongest support for an author’s main idea it greatly support the author main idea so i conclude option A is correct one hope it helps