The correct response is: The ruling was found in favor of the plaintiff, ruling that separate but equal is unconstitutional.
In Brown v. Board of Education, the Supreme Court used the process of judicial review to evaluate the legality of racial segregation in public schools, ultimately deciding that the doctrine of "separate but equal" violated the Equal Protection Clause of the Fourteenth Amendment. This landmark decision overturned previous rulings that had upheld segregation laws and marked a significant step towards desegregation in the United States.