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

实在想不通这里为什么要用被动，her colleagues  convinced that genes were ....她的同事确信基因是相对单一和静态的,不可以吗？
还有32题：Galilo was convinced that nutural phenomena.....