The correct answer is:
Through the Thirteenth, Fourteenth, and Fifteenth Amendments.
The Reconstruction Amendments are the Thirteenth, Fourteenth, and Fifteenth amendments to the United States Constitution, adopted between 1865 and 1870 immediately after the Civil War.
The Thirteenth Amendment abolished slavery and involuntary servitude, except for those duly convicted of a crime. The Fourteenth Amendment addresses citizenship rights and equal protection of the laws for all persons. The Fifteenth Amendment prohibits discrimination in voting rights of citizens on the basis of race, color, or previous condition of servitude.
