Consider the following configuration： /devices/diskP1 is a member of disk group grp1. /devices/diskP2 is a member of disk group grp1. /devices/diskP3 is a member of disk group grp1. /devices/diskP4 is a candidate disk. /devices/diskQ1 is a member of disk group grp2. /devices/diskQ2 is a member of disk group grp2. /devices/diskQ3 is a member of disk group grp2. /devices/diskQ4 is a candidate disk. Which command will add the disk /devices/diskP4 to the disk group， grp1？（）
- A ALTER DISKGROUP grp1 ADD DISK ’/devices/diskP1’， ADD DISK ’/devices/diskP4’；
- B ALTER DISKGROUP grp1 ADD DISK ’/devices/disk*4’；
- C ALTER DISKGROUP grp1 ADD DISK ’/devices/diskP*’；
- D ALTER DISKGROUP grp1 ADD DISK ’/devices/diskQ*’， ADD DISK ’/devices/diskP*’；