What information does "what is the Application Number" request?

The request for "what is the Application Number" specifically seeks the unique number assigned to the application. This number serves as an identifier that distinguishes one application from another within a database or system. It is crucial for tracking the progress of the application, referencing it in future communications, and managing any updates or changes related to the application process.

The other options pertain to different types of information; for instance, the identification of the applicant refers to personal details such as name or ID, the date of application submission indicates when the application was filed, and the Social Security Number is sensitive personal information used for individual identification and not related to the application number itself. Thus, when specifically asking for the "Application Number," the answer focuses on the unique identifier, making it the correct choice.