What will you do to create new alert log file?

The junior DBA in your organization has accidentally deleted the alert log file. What will you do to create new alert log file?

A.
Create the new text file file as ALERT.LOG.

B.
You have to recover the alert log file from the valid backup.

C.
No action required.The file would be created automatically by the instance.

D.
Change the value for the BACKGROUND_DUMP_DEST parameter.