请教一道题

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

file:///C:\Users\apple\AppData\Local\Temp\ksohtml\wpsF29F.tmp.pngB、Although many of her colleagues were of the conviction of genes being

file:///C:\Users\apple\AppData\Local\Temp\ksohtml\wpsF2B0.tmp.pngC、Contrary to many of her colleagues being convinced that genes were

file:///C:\Users\apple\AppData\Local\Temp\ksohtml\wpsF2B1.tmp.pngD、Even though many of her colleagues were convinced that genes were

file:///C:\Users\apple\AppData\Local\Temp\ksohtml\wpsF2B2.tmp.pngE、Even with many of her colleagues convinced of genes being

在进行C,D之间的选择时，选择了C。这种类型的题特别多，总是二选一的时候弄错，想请教一下大家这种题要如何思考呀？？