In the Case of Plessy V

In the case of Plessy v. Ferguson, the Supreme Court asserted that ____________________.

A) states had the authority to impose a poll tax on voters
B) the Fifteenth Amendment prohibited the establishment of literacy as a prerequisite for voting
C) states could constitutionally enact legislation by which separate-but-equal facilities were required for whites and blacks
D) separate schools for blacks were by their very nature unequal and therefore unconstitutional