Unenrolling a supervised device from an MDM solution requires an administrator's approval, typically executed by removing the MDM profile via the MDM server. For supervised devices (via ADE or Apple Configurator), users cannot remove the profile themselves, ensuring organizational control. An Apple ID (option B) isn't required for unenrollment, though it may relate to Activation Lock. User acceptance (option C) isn't needed for supervised devices. A wipe command (option D) may accompany unenrollment but isn't mandatory. The Apple Platform Deployment Guide outlines this process for supervised devices.