How Would Evolutionary Psychologists Most Likely Explain the Male and Female

How would evolutionary psychologists most likely explain the male and female sexual roles of today?

A) As products of recent changes in the society.
B) As behaviours that developed over extremely long periods of time.
C) As equal to those roles as they existed during the Pleistocene era.
D) As learned responses to environmental consequences in the individual male's and female's experience.