求助：OG12 SC-31

gui5910667

31.
Unlike the conviction held by many of her colleagues
that genes were relatively simple and static, Barbara
McClintock adhered to her own more complicated
ideas about how genes might operate, and in 1983,
at the age of 81, was awarded a Nobel Prize for her
discovery that the genes in corn are capable of
moving from one chromosomal site to another.
(A) Unlike the conviction held by many of her
colleagues that genes were
(B) Although many of her colleagues were of the
conviction of genes being
(C) Contrary to many of her colleagues being
convinced that genes were
(D) Even though many of her colleagues were
convinced that genes were
(E) Even with many of her colleagues convinced of
genes being

OG上B C E项的解释都是wordy and awkward.还是不太明白，请各位牛人帮忙解答，谢谢！