Studies Have Demonstrated That the Intelligence (IQ)of Adopted Children Is

Multiple Choice

Studies have demonstrated that the intelligence (IQ) of adopted children is more similar to that of their biological parents than to that of the adoptive parents who raised them since infancy.What does this suggest?

A) Environment plays a particularly strong role in the development of IQ.
B) Heredity plays a particularly strong role in the development of IQ.
C) People who adopt children are not very smart.
D) Children who are adopted are not very smart.