African-americans in the u.s. did not receive widespread white support for civil rights until the

Racial segregation in the United States, as a general term, includes the segregation or separation of access to facilities, services, and opportunities such as housing, medical care, education, employment, and transportation along racial lines. The expression most often refers to the legally or socially enforced separation of African Americans from other races, but also applies to the general discrimination against people of color by white communities

The answer is D as the main way to check a judicial decision is to pass a constitutional amendment