Which of the Following Is True of William Graham Sumner

Which of the following is true of William Graham Sumner?

A) He established one of the many pillars of the progressive movement during the late nineteenth century.
B) He was one of the most outspoken opponents of Darwinism in America and refused to apply it to social institutions.
C) He argued in his book Folkways that it was a mistake for the government to promote equality as it went against "survival of the fittest."
D) He was a government employee who, like Darwin, focused on the role of the human brain in shaping social change.
E) He was one of the most important realist writers in that he focused on the sentimental and worshipped nature.