D. The appearance of the odd people
Noliving things because it doesnt any function of living things
The correct answer is C. W.E.B. Du Bois (scholar and activist) was one of the most important African-American activists and the best known spokesperson for African-American rights of the first half of the 20th century. He was the co-founder of the National Association for the Advancement of Colored People (N.A.A.C.P.) and a supporter of Pan-Africanism.
Specialization of labors leads towards productivity