Answer: answer is D
Explanation: The events listed in the question are all all associated with the Reconstruction Era in American history. The Reconstruction Era is the period that followed the American Civil War, from 1865 to 1877, during which the federal government implemented and enforced laws designed to rebuild the South and integrate freed slaves into society. The 13th, 14th, and 15th amendments, which abolished slavery, granted equal protection under the law, and provided the right to vote to African American males, respectively, were all passed during this time. Andrew Johnson's plan for state governments and the opening of the first state-funded public schools in the South also occurred during the Reconstruction Era.