Prosocial Behavior Is

Prosocial behavior is:

A) an action by an individual that is intended to benefit another individual or set of individuals.
B) the idea that natural selection led to greater tendencies to help close kin over those with whom we have little genetic relation.
C) the idea that people learn to be helpful in a series of stages.
D) the desire to help another purely for his or her own sake,regardless of whether we derive any benefit.