15 - The verb form in “Their conclusion was aggregated by a modern misconception...” (l.19) is the same as that in: (A) They are studying reports...

15 - The verb form in “Their conclusion was aggregated by a modern misconception...” (l.19) is the same as that in:


(A) They are studying reports by experts;
(B) They have suffered many hardships;
(C) They had shown all their knowledge;
(D) They were thought better than the others;
(E) They were splitting some of their earnings.