Answer:
D
Step-by-step explanation:
W. E. B. Du Bois promoted equality for African Americans so A is not right.
He did not open vocational schools so B is not the right answer either.
He attended college and was the first African Americans to get a PhD from Harvard. He taught in college that was all. C is not right.
He strongly opposed lynching; especially in the southern states. So the correct answer is D.