One of the rights guaranteed by the US Constitution Amendment 1 is:

The first amendment of the US Constitution is foundational in establishing and protecting several key rights related to freedom of expression. One of the primary rights it guarantees is freedom of speech, which allows individuals to express their thoughts and opinions without government interference. This provision also includes freedom of the press, ensuring that the media can operate independently and disseminate information and opinions to the public.

This dual protection plays a vital role in promoting a democratic society by allowing for a diversity of voices and viewpoints, fostering open discourse, and enabling the critique of government actions and policies. The importance of these protections is further emphasized in legal cases where challenges to censorship or limitations on expression are evaluated against the standards set by the First Amendment.

In contrast, the other options relate to different amendments or legal interpretations that are not associated with the First Amendment itself. The right to bear arms is guaranteed by the Second Amendment, the right to privacy is a concept derived from various amendments and court rulings rather than explicitly stated in the Constitution, and protection against unlawful searches is primarily covered under the Fourth Amendment.