In the case of Homer Plessy (Plessy vs Ferguson) what did the Supreme court rule?

The Supreme Court ruled that blacks and white must remain separated but, they have equal things. Though, that was never the case. So, each race had there owns schools. Well, the whites had nicer schools with better teachers and books. The blacks had schools were torn up and had old books that were ripped and such. It was really quite horrible in my opinion. We're all people here and that should have never happened in the first place.

i am sure the answer is d