What is one of the required documents that could serve as proof of identity?

A passport is considered a valid proof of identity because it serves as an official government-issued document that verifies a person’s identity and citizenship. It contains essential personal details such as the individual's name, date of birth, photograph, and signature, which helps confirm the identity of the holder. When renewing a California driver's license, providing a passport fulfills the requirement for an acceptable form of identification, aligning with the regulations set forth by the Department of Motor Vehicles (DMV).

Other options, while they may serve as forms of identification in specific contexts, do not carry the same level of authority or recognition as a passport. A credit card does not provide verifiable identity details like a photograph or full name as shown on an official identification document. A school ID is often deemed insufficient for formal identification purposes as it may not be widely accepted or may lack critical information. An employee badge might not have the same universal acceptance due to being issued by an individual employer, which could lead to questions about its validity.