一道GRE六选二题,49.Although the film is rightly judged imperfect b

一道GRE六选二题,
49.Although the film is rightly judged imperfect by most of today’s critics,the films being created today
are ______ it,since its release in 1940 provoked sufficient critical discussion to enhance the intellectual
respectability of cinema considerably.
(A) beholden to
(B) indebted to
(C) derivative of
(D) based on
(E) distinguishable from
(F) biased against
出处：PPII,Practice Test 2,V1,Medium,#15
虽然这部电影被现今的评论者认为是不完美的,但是这部片是被视为 ______ 的,因为在
1940年的时候就引起了相当多要促进电影知识评论性的讨论.
(B) 感激
(C) 衍生
(D) 依据
(E) 可分辨
(F) 对…有偏见
答案是AB,我选的是CD.从题干那些关键词可以推断出空要填"感激“,觉得有些牵强.