Longitudinal Studies Tracking Parenting Practices and Children's Behaviors in Three

Longitudinal studies tracking parenting practices and children's behaviors in three generations found

A) each generation learned positive behaviors from the generation that preceded it so there was improvement in parenting over generations.
B) negative parenting behaviors were transmitted from one generation to another, but positive behaviors were not.
C) positive parenting behaviors were transmitted from one generation to another, but negative behaviors were not transmitted.
D) both positive and negative parenting behaviors were transmitted from one generation to another.