问题详情

It can be inferred from Paragraph 4 that ______.
A．Human behavior. is confined to the exclusive concern of psychologists.
B．Economists" utility is only the explanations for random acts of kindness.
C．Altruism is developed during the long process of human evolution.
D．Biologists can help economists explain some human behavior. deviations.请帮忙给出正确答案和分析，谢谢！