Which amendment guarantees the right to confront witnesses?

The Sixth Amendment is the correct answer because it explicitly guarantees the rights of individuals in criminal prosecutions, including the right to confront witnesses against them. This provision ensures that a defendant has the opportunity to challenge the testimony of witnesses in court, which is fundamental to a fair trial. The ability to confront witnesses is crucial for maintaining the integrity of the adversarial system of justice, allowing the accused to question the credibility and reliability of the testimony provided, thereby protecting their right to a fair legal process.

The other amendments mentioned do not pertain to the right to confront witnesses. The Eighth Amendment addresses protections against excessive bail and cruel and unusual punishment, the Fourth Amendment protects against unreasonable searches and seizures, and the Fifth Amendment deals with rights related to due process and self-incrimination. Each of these amendments serves distinct purposes within the Bill of Rights, but none include the specific provision for confronting witnesses that is found in the Sixth Amendment.