Which amendment abolished slavery in the United States?

The 13th Amendment is the correct choice because it explicitly abolished slavery and involuntary servitude in the United States, except as punishment for a crime. Ratified in December 1865, this amendment was a significant outcome of the Civil War and a pivotal moment in the struggle for civil rights in America. Its passage marked the formal end of legal slavery, ensuring that slavery could no longer be permitted within the borders of the United States.

In contrast, the other amendments listed serve different purposes: the 14th Amendment addresses citizenship rights and equal protection under the law, the 15th Amendment pertains to voting rights regardless of race, and the 19th Amendment grants women the right to vote. Each of these amendments plays a crucial role in the broader context of civil rights in the U.S., but none directly abolish slavery as the 13th Amendment does.