单选题 Why is social behavior difficult to change?

A、 One's behavior is inborn so that nothing can be done about it.
B、 One's behavior is instinctive so that he/she can't act differently.
C、 One's behavior is taught from childhood so that it is fixed as normal in his/her childhood.
D、 If one never changes his/her geographical dwelling, his/her social behavior can never be changed.

【正确答案】 C

【答案解析】..persistently and early impressed on...”，所以答案应该是C。