Why You lost your Oracle ILOM settings after a service processor firmware update?

You lost your Oracle ILOM settings after a service processor firmware update. Why?

A.
You did not enable the Preserve Configuration option.

B.
You did not back up the Oracle ILOM configuration.

C.
Oracle ILOM settings must be re-established after every firmware update.

D.
You used the Oracle ILOM web interface rather than the CLI to perform the update.