A system administrator has an application that has the data in volume group appvg. Which of the following commands will back up the contents of appvg to the tape in /dev/rmt0 and check for any read errors？（）
- Asavevg -mf /dev/rmt0 appvg
- Bsavevg -cvf /dev/rmt0 appvg
- Csavevg -xvf /dev/rmt0 appvg
- Dsavevg -f /dev/rmt0 -V appvg