Which one of the following is true about the role of heredity and environment in the development of a child?

Options

A. Some students quickly process information while others in the same class do not
B. There has been a steady Increase In students' average performance an IQ tests in last few decades
C. Correlation between IQs of identical twins raised in different homes is as high as 0.
D. Physically fit children are often found to be morally good

Answer

C