Answer:
The answer is: letter A. Racial discrimination will not be tolerated.
Explanation:
Eleanor Roosevelt's action towards DAR (Daughter's of the American Revolution) and her treatment of Marian Anderson (a black woman) proved that racial discrimination will not be tolerated.
Since her plea to let Marian Anderson sing at the hall was not allowed by the DAR, she removed herself from the organization. This shows how much she supported the equality of all races. She also made a way to let Marian Anderson sing at the Lincoln Memorial, where thousands of people (both white and black) gathered to listen to her song. So, with this, Roosevelt was able to strengthen her movement against racial discrimination, thus allowing the black people to have confidence (especially the black artists) in performing.
Thus, this explains the answer.
