1-56Todd and His Siblings Have Parents Who Are Physically Abusive

1-56.Todd and his siblings have parents who are physically abusive to each other. When they fight,they expect Todd to stay quiet and keep the other children under control.They allow the other children to cry and hide,but Todd must stay in the room with them and referee.This is an example of

A) a genotype-environment correlation.
B) a shared environmental influence.
C) a nonshared environmental influence.
D) a protective factor.