Richard Herrnstein and Charles Murray Published a Book Called the Bell

Richard Herrnstein and Charles Murray published a book called The Bell Curve, which suggested

A) racial differences in IQ do not exist.
B) racial differences in IQ can be contributed to genetics.
C) "curving" scores on exams hurt ethnic minorities more than it helped them.
D) putting children in the "right " schools will increase their IQ.
E) IQ is largely due to social influences.