According to Evolutionary Psychologists,we Help Others Because of Three Factors

According to evolutionary psychologists,we help others because of three factors that have become ingrained in our genes: the reciprocity norm,

A) kin selection, and empathy.
B) empathy, and .social exchange
C) social exchange, and kin selection.
D) kin selection, and the ability to learn to follow norms and customs.
E) empathy, and cultural values.