Which statement best describes the ‘config rollback’ feature?

A.
Once the ‘config rollback’ feature is enabled; it allows the administrator to re-apply a
previously saved configuration file from Flash

B.
The ‘config rollback’ feature is enabled by default; it allows the administrator to re-apply a
previously saved configuration file from Flash

C.
Once the ‘config rollback’ feature is enabled; it allows the administrator to re-apply a
locked configuration file from a separate area in Flash

D.
Once the ‘config rollback’ feature is enabled; it allows the administrator to revert to the
prior ScreenOS image in the event an upgrade operation aborts

E.
Once the ‘config rollback’ feature is enabled; it allows the administrator to revert to the
prior ScreenOS image or configuration file in the event an upgrade operation aborts