Answer:
All three amendments secured rights for African Americans.
Explanation:
The Thirteenth, Fourteenth, and Fifteenth amendments were a series of legislation enacted after the Civil War that secured basic liberties and rights for African Americans, who had been harshly discriminated and mistreated for decades.
The amendments recognized African Americans and all races in the U.S. as equal humans beings by prohibiting slavery (13th), by declaring that all person born or naturalized in the U.S. were citizen thus they had to be protected equally under the law (14th), and by guaranteeing the citizen's right to vote regardless of their race, color, or previous condition of servitude (15th).
