Fallon is on her way to work when she sees a little boy, who is crying and apparently lost. Seeing the crying boy makes Fallon very uncomfortable and upset. To reduce these negative feelings, Fallon stops to help the boy find his parents. Which theory best explains Fallon's helping behavior? A) Arousal: cost-rewar.
B) Empathy-altruism.
C) Evolutionary.
D) Environmental.