Forms of art depend upon
a. the message the artist wants to convey and the culture.
b. the artist’s tastes and the message the artist wants to convey.
c. current trends and available materials.
d. the money the artist can get from pieces sold.

Forms of art depend upon (B) the artist’s tastes and the message the artist wants to convey. Different art form are interpreted majority based on the artist's point of view and can also be at the viewer's point of view. It depends on how the artist did the art, at that moment or mood or dedicating to it someone or a certain event.

True! true !