Which of the following amendments is focused on the right to bear arms?

The Second Amendment is specifically focused on the right to bear arms. It states, "A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed." This amendment has been at the center of discussion regarding the balance between individual rights and public safety, reflecting the Founding Fathers' intent to allow citizens the means to defend themselves and maintain personal freedom.

In contrast, the First Amendment addresses freedoms concerning religion, expression, assembly, and the right to petition. The Third Amendment deals with the quartering of soldiers in private homes during peacetime, while the Fourth Amendment protects against unreasonable searches and seizures. Each of these other amendments serves a different purpose and does not focus on the issue of bearing arms, which is why the Second Amendment is the correct answer.