Because Pairs of Identical Twins Are More Similar in Their

Multiple Choice

Because pairs of identical twins are more similar in their aggressive inclinations than are pairs of fraternal twins, we can infer that

A) heredity contributes more to aggression than does environment
B) aggression is influenced by the genes we have inherited
C) identical twins are more aggressive then fraternal twins
D) aggression is influenced by the genes we have inherited and identical twins are more aggressive then fraternal twins
E) all of these