Brittanie's Parents Have Experienced Major Depressive Episodes and She Does

Brittanie's parents have experienced major depressive episodes and she does not want her children to go through this. She seeks a partner who has emotionally stable parents and she surrounds herself with healthy friends and engages in a variety of health promoting lifestyle behaviors. In doing this, what type of factors is Brittanie relying on in promoting the emotional health of her future children?

A) focus on internal moral guidelines
B) only the social factors
C) only predisposing or genetic factors
D) predisposing, precipitating, and sustaining factors