Account-driven User Enrollment requires a Managed Apple Account to initiate the process, enabling separation of personal and organizational data on personally owned devices. TheiOS Deployment Referencestates, "Account-driven User Enrollment requires the user to sign in with a Managed Apple ID on the device, which triggers the enrollment process and establishes a managed container for organizational data." Option B is incorrect as a personal Apple Account isn’t used for this enrollment type, C relates to manual enrollment methods, and D is not a standard requirement for this process.