Researchers Have Found Children's Responses to the Elements of Parenting

Researchers have found children's responses to the elements of parenting that contribute to self-regulatory behavior interact with their own "capacity for responding to parenting" genes. In other words, some children are more negatively influenced by poor parenting than other children. These effects of these genes

A) are greater among girls than boys.
B) are greater among boys than girls.
C) are not affected by the sex of the child.
D) vary significantly based on the age of the parents.
E) vary significantly based on the social class of the parents.