以下属于人类的社会性需要的是( )。

A．觉醒需要

B．成就需要

C．睡眠需要

D．饮水需要

What does the professor mean when she says this

A. True art is supposed to mean something to everybody.
B. Art should be put on a pedestal to have its vitality.
C. Works in the great medieval and Renaissance are real arts.
D. The authentic American art of our time is "high" art.