How Was the Fourteenth Amendment Reinterpreted in the Brown V

How was the Fourteenth Amendment reinterpreted in the Brown v. Board of Education (1954) decision?

A) Equal protection, although not explicitly stated, was inferred from the amendment.
B) Equal protection prohibits racial discrimination.
C) It was not reinterpreted, but instead, adequately applied.
D) Equal protection prohibits discrimination against sexual orientation.