Which of the following challenged jim crow laws after reconstruction ended? a. the plessy v. ferguson case b. the thirteenth amendment c. the fourteenth amendment d. the civil rights act of 1875

The correct answer is A.

The Plessy v. Ferguson case dealt with the constitutionality of the "separate but equal" lemma in 1896. Anyway, the decision reached in the end by the US Supreme Court, allowed the proliferation of segregated public facilities and of the Jim Crow laws under the belief that, if facilities were equal in quality (for example, schools or public transport), such system was not violating the equality of rights provision that had been guaranteed for all US citizens in the 14th Amendment to the US Constitution, enacted in 1868 during the Reconstruction Era.