Which Factor Contributes the Most to Explaining Gender Differences in Depression

Which factor contributes the most to explaining gender differences in depression rates?

A) Males are more likely to seek treatment for depressive symptoms.
B) Males are more likely to report higher stress levels day to day.
C) Females are more likely to engage in rumination about their problems.
D) Females cope more effectively with interpersonal problems.
E) Males are more likely to be victims of online-based bullying.