When my friends ask me if I'm ok but I'm not really ok

Diego rivera was a famous artist from mexico. most of his paintings were murals. murals are paintings that are made directly on a wall. rivera thought that all people should be able to see beautiful art, not just people who could afford to go to museums. this is why he painted most of his murals on the walls of public buildings

Why did the author include the fact that 40,000 african americans participated in the bus boycott

Which sentence from the article best supports the statement above