Which of the following statements is true according to the passage
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.