C) Segregation was necessary to preserve public peace.
Explanation:
Plessy v. Ferguson, 163 U.S. 537, was a landmark judgment of the U.S. Supreme Court announced in 1896. It confirmed the constitutionality of national discrimination laws for public facilities as long as the segregated facilities were equal in worth a concept that came to be recognized as separate but equal. The Court governed on the idea of separate but equal and set back civil rights in the United States for decades to come.
The answer would be the US Supreme Court gets to decide which cases it will hear, the door is narrow only 80 of 80 thousand are heard by the Court. The justices need to grant a “writ of certiorari” that is the name of the decision by the Supreme Court.This is what happens if the Supreme Court refuses to review a case.