Which of the following amendments abolished slavery?

The 13th Amendment abolished slavery in the United States. Ratified in 1865, this amendment explicitly prohibits slavery and involuntary servitude, except as punishment for a crime. It marked a significant legislative step in American history, ensuring that no person could be held as a slave or forced into servitude against their will. This amendment was crucial in the context of the Civil War and the broader struggle for civil rights, fundamentally changing the legal status of millions of African Americans.

The other amendments mentioned address different aspects of civil rights and liberties. The 14th Amendment focuses on citizenship rights and equal protection under the law, the 15th Amendment prohibits denying the right to vote based on race, color, or previous condition of servitude, and the 19th Amendment grants women the right to vote. None of these amendments directly address the abolition of slavery, making the 13th Amendment the correct answer to the question.