A Parent Who Falls on the "Activity" Side of the "Activity-Passivity

A parent who falls on the "activity" side of the "activity-passivity" issue is most likely to believe that

A) if a child is aggressive,the parents were not active enough in parenting.
B) if new skills are not regularly used,they will disappear.
C) we are naturally more active when young and become more passive with age.
D) children play an important role in shaping their own development.