In 1954, the supreme court case brown v. board of education a)overturned plessy v. ferguson by ruling segregation unconstitutional. b)stated that african american and white schools needed to be equal. c)upheld the separate car act by ruling that segregation was legal. d)upheld plessy v. ferguson by ruling segregation constitutional.

The correct option is A

The Supreme Court case Brown v. Board of Education, is a landmark judicial ruling by the Supreme Court of the United States that stated that state laws establishing separate schools for African-American and white students denied equal educational opportunities. The ruling was issued on May 17, 1954, unanimously (9-0) by the Warren Court; and established that "separate educational facilities are inherently unequal". With this, the Supreme Court reversed the existing precedents from Plessy against Ferguson in 1896. As a result of this ruling, racial segregation came to be considered as a violation of the Equal Protection Clause of the Fourteenth Amendment to the United States Constitution. . This ruling opened the way for racial integration and achieving civil rights for African Americans.

d.summerains, the last one