A system administrator has successfully backed up the VIOS software and is ready to perform a VIOS software update. Which command will the administrator use to update the software from a CD？ （）
- A smit update_all
- B geninstall -d /dev/cd0 all
- C installp -acgX -d /dev/cd0 all
- D updateios -dev /dev/cd0 -accept -install