Which Statement About the Influence of Biology and Parental Socialization

Which statement about the influence of biology and parental socialization on children's antisocial behaviour is true?

A) It is simple to statistically separate out the effects of biology and socialization on antisocial behaviour.
B) Nearly all effects of parental socialization could be due to biological similarities between parents and children.
C) Nearly all effects of parental socialization could be due to children's biologically based characteristics, such as difficult temperaments, eliciting harsh discipline.
D) Research demonstrating that parents who are trained to deal with their children effectively have children who show improvements in conduct problems is evidence that parental socialization has a causal influence on children's antisocial behaviour.