What specific information must be included on a primary ID?

The specific information that must be included on a primary ID involves a photo and a unique identifier number. A primary ID, such as a driver's license or a passport, typically requires a photograph to verify the identity of the individual to prevent impersonation and to confirm that the person presenting the ID is indeed the rightful holder. The unique identifier number, which could be a driver's license number, passport number, or identification card number, serves as a distinctive reference that links the individual to the document, helping to prevent fraudulent identifications and ensuring secure record-keeping.

This combination of a photo and a unique identifier is crucial for establishing a person's identity in various contexts, such as travel, legal transactions, and age verification, making it a foundational aspect of ID verification processes. In contrast, while other options contain information that can be associated with personal identification, they do not reflect the essential elements required for a primary ID.