Which of the following is a right guaranteed by the Constitution?

The right to bear arms is guaranteed by the Second Amendment of the Constitution, making it a fundamental right recognized within the framework of American law. This amendment is part of the Bill of Rights, which outlines the individual rights and freedoms afforded to citizens. The specific language of the Second Amendment emphasizes the importance of a well-regulated militia and the individual's right to keep and bear arms, thereby enshrining it as a constitutional right.

In contrast, the right to free education and the right to free healthcare are not explicitly guaranteed by the Constitution. While various laws and policies may provide for education and healthcare, these are not constitutionally mandated rights. The right to privacy, while recognized in various Supreme Court decisions and interpretations of the Constitution, is not clearly articulated in the text itself. Instead, it has been inferred from other amendments, indicating that it does not have the same unequivocal status as the right to bear arms outlined in the Second Amendment.