compare these two images. Pick the statement the best describes the way they illustrate change in portraits over time.

A. portraits show changes in paint pigments used over time.
B. these paintings show that subjects were originally religious but now only portray the common man.
C. these paintings show the image of the human figure becoming more realistic and three-dimensional.
D. human figures were once depicted with halos but now have none.

C. these paintings show the image of the human figure becoming more realistic and three-dimensional.