The correct answer is B. Plessy vs. Ferguson.
Explanation:
In law, to overturn means a previous law or decision is invalidated, this is common when there are new evidence or legal cases that show a previous decision or law was not appropriate. In the case of Brown v Board, this was a legal case in 1954 in which parents of African American children sued the Board of Education due to schools being segregated.
This decision invalidated a previous case know as Plessy vs. Ferguson (1896) in which the Court established segregation was acceptable and was not against the Fourteenth Amendment in cases facilities or services for black people and white people offer the same services or quality. In this way, with the new decision of Brown v Board, it was shown Plessy vs. Ferguson decision was not correct as segregation was against the constitution in all cases and therefore the second decision invalidated the first.
