Which of the Following Is Most Consistent with Evolutionary Explanations

Which of the following is most consistent with evolutionary explanations of aggression?

A) Children are more likely to be abused by stepparents than by their biological parents.
B) Male-to-male violence is predominantly triggered by sexual jealousy.
C) Male-to-male violence is triggered by a rise in testosterone.
D) Different cultures demonstrate different levels of aggressiveness.