I believe the correct answer is B. Washington and DuBois did not want African Americans to give up on achieving racial equality in the United States.
Marcus Garvey advocated black separatism as the best chance for African Americans to prosper (he supported Pan-Africanism and founded the Universal Negro Improvement Association and African Communities League (UNIA-ACL)), but Washington and DuBois did not want African Americans to give up on achieving racial equality in the United States.