Which of the following can be used to prove U.S. citizenship?

A driver's license can serve as a form of identification that establishes the identity of an individual but does not directly prove U.S. citizenship. The primary purpose of a driver's license is to validate that a person has the legal right to operate a vehicle. While it may indicate the holder’s residency within the state and some aspects of their identity, it does not necessarily provide proof of citizenship.

In contrast, a U.S. passport is the most widely accepted document used to unequivocally prove citizenship. It requires the holder to provide evidence of citizenship when applying, such as a birth certificate or naturalization certificate. Other documents, such as a utility bill, do not establish citizenship at all. A school ID similarly may not contain all necessary information to confirm citizenship status. Therefore, in contexts where proof of U.S. citizenship is specifically required, a passport is the most appropriate documentation, rather than a driver's license.