Which of the following is backed up with the mksysb command when a system consists of the volume groups rootvg, vol1, and vol2?（）

• A、All filesystems in rootvg, vol1, vol2
• B、All locally mounted filesystems in the rootvg
• C、All files in the rootvg and system files in vol1 and vol2
• D、All local and remotely mounted filesystems