System Integrity Protection (SIP)restricts root user actions, protecting critical system files and processes from modification, even with admin privileges. Enabled by default since macOS Sierra.
* Option A: XProtect scans for malware, not limits root.
* Option B: Full Disk Access grants permissions, not restricts.
* Option D: Secure Enclave handles encryption, not root limits.
* Option C: Correct-SIP enforces security.References: Apple Support - "About System Integrity Protection" (support.apple.com/HT204899).

A system crash triggering a restart sends analytics to Apple (if enabled inSystem Settings > Privacy & Security > Analytics & Improvements) to improve macOS.
* Option A: Diagnostics doesn't send data automatically.
* Option B: App failures don't trigger this.
* Option C: Privacy blocks don't report.
* Option D: Correct-crash reports are sent.References: Apple Support - "Share analytics with Apple" (support.apple.com/HT202100).

To delete a user on a Mac, you need to follow these steps 1 2 :
* Navigate to System Settings -# Users & Groups. This is where you can manage the users and groups on your Mac. You may need to scroll down to see all the options.
* Click the lock icon at the bottom left of the window and enter your administrator password to make changes.
* Click the (i) button next to the user you would like to delete on Mac. This will show you more information about the user, such as their name, picture, password, and permissions.
* Click Delete User or Delete Group. This will prompt you to confirm your action and choose what to do with the user's home folder.
* Select Delete Account. This will remove the user and their home folder from your Mac, freeing up storage space. Alternatively, you can choose to save the home folder as a disk image or leave it as it is, in case you want to restore the user later.
* Click Delete User or Delete Group again to finalize the deletion.: Delete a user or group on Mac - Apple Support , Here's our guide on how to delete a user on Mac - MacPaw