Answer:
C. By fighting inequality in public schools
Step-by-step explanation:
NAACP is an acronym for National Association for the Advancement of Colored People and it's a civil rights organization that was established on the 12th of February, 1909, New York City, United States of America.
Basically, it's an interracial organization that is focused on advocating civil rights and social justice for African Americans (Blacks) living in USA.
The main purpose of NAACP is to eliminate racial discrimination, racial hatred, and to ensure that there's equality of rights based on factors such as politics, social, economic and education.
The National Association for the Advancement of Colored People (NAACP) fought segregation in the United States of America by fighting inequality in public schools, proving that schools were not equal and entering into litigations with erring individuals, groups or businesses.