A．Unlike Francisco Goya, Pablo Picasso and several Mexican artists expressed their political opinions in their paintings.
B．History books often reveal the compilers' political views.
C．Religious art remained in Europe for centuries the only type of art because most people regarded the Bible as the Holy Book.
D．In the Middle East even today you can hardly find any human and animal figures on palaces or other buildings.

A．shows us the religious beliefs and emotions of a people in addition to political values
B．provides us with information about the daily activities of people in the past
C．gives us an insight into the essential qualities of a time and a place
D．all of the above