According to the Supreme Court, why was the doctrine of "separate but equal” no longer acceptable?

In Brown v. Board of Education, the Supreme Court ruled that separating students by race in public schools made the schools unequal, even if their buildings or other resources seemed comparable. That is why the doctrine of “separate but equal” was no longer acceptable. Choice C is the closest match; the Court’s key point was that segregated schools were inherently unequal.

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