Which of the following did the Supreme Court rule in Plessy v. Ferguson?

Question

that segregation could continue
that segregation could continue

that the actions of Ku Klux Klan members would be protected as free speech
that the actions of Ku Klux Klan members would be protected as free speech

that freed African Americans had the right to vote
that freed African Americans had the right to vote

that black codes were unconstitutional

Answer 1

that segregation could continue