Answer:
C
the explanation is that i googled it so its correct and if it is mark me as brainless
The answer is content as content is the one responsible of having to show what the imagery or the work of art is about. Is a way of having to express the subject matter and to depict the portrait that is being displayed as an art for viewers to see and define it in ways that they could understand.
The cave paintings in africa depict parts of african folklore that other countries do not.