单选题

　　[概括大意]Today， we are beginning to think differently. In the last few years， research has thrown doubt on the view that innate intelligence can ever be measured and on the very nature of intelligence itself. There is considerable evidence now which shows the great influence of environment both on achievement and intelligence. Children with poor home backgrounds not only do less well in their school work and intelligence tests but their performance tends to deteriorate gradually compared with that of their more fortunate classmates.

　　The main idea of this paragraph is__________.

　　A、Main Results of Recent Researches

　　B、Popular Doubt about the New View

　　C、Effect of Environment on Intelligence

　　D、Impact on School Education