What Counterintuitive Result Came from the Stanford/Pew Study of Total

Multiple Choice

What counterintuitive result came from the Stanford/Pew study of total family earnings compared with parent's income?

A) Men tend to make more than women because they are paid more.
B) Women tend to make a higher family income because they are more likely to get married.
C) Men and women tend to earn about the same amount of income over their lifetime.
D) Women who marry other women tend to earn more than if they married men.