Automated Device Enrollment (ADE), used with Apple Business Manager or Apple School Manager, automatically supervises devices during setup, enabling advanced restrictions and management. Supervision is a default outcome of ADE for organization-owned devices. Device Enrollment (option B) can include supervision if paired with tools like Apple Configurator, but it's not inherent. User Enrollment (option C) is for BYOD and doesn't support supervision to protect user privacy. The Apple Platform Deployment Guide ties supervision to ADE.