Thank you very much for your answer. But I should have clarified my question better. I am sorry but I am still confused because of Question number 9
The correct answer to Question number 9 was (B) , not (A).
To me, (C) in question number 13 resembles (B) in Question number 9.
And (D) in question number 13 resembles (A) in Question number 9.
Since primary purpose of the passage is just the abstract of Main Idea of the passage,
if the correct answer to question number 9(Main Idea question) was (B),
then, I thought, (C) was the correct answer.
Why is it that here in number 13, the answer choice (C) is incorrect for being too narrow, while in number 9 the correct answer was (B), not (A)?
Thank you!