The Authors of the Controversial Book the Bell Curve State

The authors of the controversial book The Bell Curve state each of the following EXCEPT

A) differences in levels of intelligence contribute to crime and unemployment.
B) growing up in poor neighborhoods has an impact on individuals' scores on IQ tests.
C) we need to create policies that recognize the importance of intelligence in our society.
D) differences in IQ scores between majority and minority individuals are not due to test bias.