Nancy, Like Many in Her Family, Has a Tendency to Be

Nancy, like many in her family, has a tendency to be impulsive, to make rash decisions, and to act without thinking about possible outcomes. As a result, she sometimes finds herself buying luxury items she cannot afford or making less-than-healthy relationship decisions, which, in turn, results in her experiencing higher levels of stress that lead to her making more impulsive decisions. This illustrates the

A) direction of causation between diatheses and stress
B) independent nature of diathesis and stress
C) reduction of diathesis by stress
D) interaction of diathesis and stress