The author specifically mentions that ______.A．black Americans are most prejudicially trea

The author specifically mentions that ______.

A．black Americans are most prejudicially treated in the U. S.

B．discrimination in the South was not more obvious than in the North

C．the situation of blacks is almost the same today as it was in the 1930s

D．after blacks became free people they didn't experience discrimination in employment and public facilities