Which of the following rights is guaranteed under the Sixth Amendment?

The Sixth Amendment to the United States Constitution ensures several rights related to criminal prosecutions, with one of its key provisions being the right to a speedy and public trial. This right is fundamental to the legal process, as it helps to prevent undue delays in the prosecution of criminal cases, thus protecting individuals from prolonged incarceration without a conviction. A public trial also serves to ensure transparency and accountability within the judicial system, allowing the community to observe the proceedings and ensuring that justice is not only done but seen to be done.

The other options relate to different constitutional rights: the right to bear arms is protected by the Second Amendment, the right to vote is not explicitly mentioned in the Constitution but is addressed in subsequent amendments, and the right to search private property pertains to protections against unreasonable searches and seizures covered under the Fourth Amendment. This context is essential for understanding the framework of rights within the Constitution.