What is the significance of the landmark Supreme Court case Plessy v. Ferguson?

A. It allowed African Americans to attend the same schools as White America
B. It demonstrated for the first time in history how the Supreme Court has its flaws.
C. It was the beginning of the Civil Rights Movement
D. It legally justified legal segregation under the doctrine of "separate but equal"

Answer glacier terminus;

Europe needs to build a trump-like wall that will spread across europe making it impossible for migrants to cross they need to spread pig guts all over this wall so the muslims will never consider crossing into europe..you might be asking "can't they just fly over with planes? " well yes they can so we will install thaad missile protections system to shoot down any aircraft that violates europe's air fourth would be to start a fourth reich in germany.. last but not least.. make europe great again!