What do you have to do in the Console to start making API calls against your existing API key?

You are implementing Customer Identity via server-side REST API.

What do you have to do in the Console to start making API calls against your existing API key?
A . Create a new application and secret key to be used for the request.
B . Enable the REST interface in the site settings.
C . Add the IP address of the backend on the IP-Allowlist of SAP Customer Data Cloud.
D . Create a CNAME in the site settings.

Answer: C