The answer to the question: "Who proposed that educated African Americans should attempt to achieve immediate inclusion into mainstream American life", is "None of the above".
Booker T Washington proposed that vocational education for African Americans should be more valuable to them than social advantages.
Theodore Dreiser was an American author and socialist. He was involved in several campaigns against social injustice.
W.E.B du Bois demanded equality for African Americans in all spheres of life.
