Answer:
I think options A is correct
The correct answer is "Sweatt ruled that “separate but equal” graduate and professional schools were constitutional. Brown overturned that decision."
<em>"Sweatt vs Painter" </em>ruling was successful in challenging the "separate but equal" doctrine of racial segregation established by previous case "Plessy vs Fergusson". Sweatt ultimately won the case when the Supreme Court concluded that Thurgood Marshall School of Law failed to qualify for being a "separate but equal" educational institution, as it lacked the sufficient facilities to become one.
<em>"Brown vs Board of Education"</em> ruling effectively overturned the ruling of the <em>"Plessy vs Fergusson case"</em>, when the Supreme Court indicated that state laws that permitted separate public schools were unconstitutional.
