<u><em>On May 17, 1954, U.S. Supreme Court Justice Earl Warren delivered the unanimous ruling in the landmark civil rights case Brown v. Board of Education of Topeka, Kansas. State-sanctioned segregation of public schools was a violation of the 14th amendment and was therefore unconstitutional.</em></u>
Answer:
A. Because the 13th amendment was passed to abolish slavery, white business owners and plantation owners used the Black Codes as a way for the white employers to still treats blacks as slaves rather than employees.
