A. The command adds the new disk， D4， to the disk group.
B. The command would result in an error because the is no disk by the name "’/devices/D*’"
C. The command will be ignored because disks starting with "D" are already members of the disk group.
D. The command would result in an error because no wildcard characters can be used in the disk name.
E. The command first detaches all the member disks starting with "D"， and the reattaches them including the new disk.

A. It would return information regarding only the last committed transaction.
B. It would return only the active transactions in all the undo segments in the database.
C. It would return only the committed transactions in all the undo segments in the database.
D. It would return both active and committed transactions in all the undo segments in the database.
E. It would return information regarding the transactions that began and were committed in the last 30 minutes.