Twin Studies of Individual Differences in Empathy and Prosocial Behavior

Multiple Choice

Twin studies of individual differences in empathy and prosocial behavior imply all the following except ____________.

A) some of us inherit more "altruistic" genes than others
B) genetic contributions to empathy/prosocial conduct are most closely linked to individual differences in temperament
C) such shared environmental influences as parenting are most important early in life
D) nonshared environmental influences become more important influences with age