what is one possibility that would cause this issue?

You are unable to add an Oracle ILOM user account, what is one possibility that would cause this
issue?

A.
You need to add SSH keys to the system before creating additional user accounts.

B.
You do not have the user management role enabled.

C.
You do not have the host control role enabled.

D.
You have exceeded the maximum number of 5 user accounts.