which command would you use to back up your NOARCHIVELOG mode database using RMAN with compression?

A shoot-out has erupted between your MS development teams using .NET and your Linux
development teams using Jav
a. Knowing that your database is in danger, which command would you use to back up your
NOARCHIVELOG mode database using RMAN with compression?

A.
backup database all

B.
backup compressed database

C.
backup as compressed backupset database;

D.
backup as compressed backup database plus archivelog all;

E.
backup as compressed backupset database plus compress archivelog all;

Explanation:

RMAN-03009: failure of backup command on ORA_DISK_1 channel at
02/23/2014 11:46:01
ORA-19602: cannot backup or copy active file in NOARCHIVELOG mode
RMAN>