You've been asked to install Oracle Database $12$c on a new Linux server. You're likely to ask the Unix system administrator to do all but which one of the following for you to get the new server ready for Oracle?

A$.$

modify the server's kernel parameters.

B$.$

Create a new Unix user to own the Oracle software.

C$.$

Create the mount points and directory structure using the OFA model.

D$.$

determine which directory will be used for $ORACLE$\_$HOME.