The correct answer to this open question is the following.
Although there are no options attached, we can say the following.
The nature of the arguments among African American leaders such as Marcus Garvey and W.E.B. DuBois were that African Americans have the right to have equity and social justice, as well as the growth opportunities white people had in the United States.
Both renowned African Americans were part of a social-political movement known as Pan Africanism. This movement that was created at the beginning of the 20th century invited black people to unite under the culture and belief systems that characterized black people. They invited black people to present a unified force to improve their social conditions in America.