which two scenarios is this command required?

Examine the command: SQL> RECOVER DATABASE USING BACKUP CONTROLFILE
UNTIL CANCEL; In which two scenarios is this command required?

A.
The current online redo log file is missing.

B.
A data file belonging to a noncritical tablespace is missing.

C.
All the control files are missing.

D.
The database backup is older than the control file backup.

E.
All the data files are missing.