Which of the following backup types will not reset the archive bit on backed up files?

GFS (Grandfather-Father-Son) is a backup rotation strategy, not a specific backup type that dictates how archive bits are handled.

A full backup copies all selected files and resets their archive bits to indicate they have been backed up.

A differential backup copies all files that have the archive bit set (meaning they have changed since the last full backup) but crucially does not reset the archive bit after backing them up. This allows subsequent differential backups to continue backing up the accumulated changes since the last full backup.

An incremental backup copies files with the archive bit set and then resets the archive bit for those files, marking them as backed up.