Which of the following rights is guaranteed under the U.S. Constitution?

The right to free speech is guaranteed under the U.S. Constitution through the First Amendment. This amendment protects the freedom of expression, allowing individuals to speak their minds without government interference or censorship. This foundational principle is crucial to maintaining a democratic society, where diverse opinions and ideas can be freely exchanged.

In contrast, the other rights listed—education, healthcare, and a job—are not explicitly mentioned in the Constitution. While the government promotes these rights through various programs and policies, they do not have the same constitutional protection as the right to free speech. The First Amendment's safeguarding of free expression plays a pivotal role in ensuring that citizens can participate fully in their democracy, advocating for various causes, including those related to education, healthcare, and employment rights.