Answer :
The 13th, 14th, and 15th, Amendments to the Constitution were undermined by all of the following except Brown V. Board of Education is your answer. Hope this helps! :)
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Answer:
D) Brown v. Board of Education.
Explanation:
Brown v. Board of Education (1954) struck down the "separate but equal" doctrine established in Plessy v. Ferguson. Segregation of white and black children in the public schools of a State solely on the basis of race, denies to black children the equal protection of the laws guaranteed by the Fourteenth Amendment.