The answer is B. Garvey advocated black separatism as the best chance for African Americans to prosper
Marcus Garvey is one of the biggest supporters of Pan-Africanism. He founded the Universal Negro Improvement Association and African Communities League (UNIA-ACL), where he had encouraged the global mass movement and economic development to many Africans all over the world. They encouraged the Pan-African philosophy, which is also known as Garveyism