Answer:
Indifference:lack of interest, concern, or sympathy.
He believed that way because If you get interested,concerned,or sympathy to racism it might end up bad
Explanation:
I don't know what u mean by primary purpose light colors but if you just asking for primary colors these are the only ones.
Answer:
the piece is subject or matter
Explanation because the artist had a lot of thinking to do with this one
Depending on what comes next, you could use dream.
A radial or circular balance