Which statement is correct regarding external LDAP configuration for Cloud Pak for Data System?

A. An administrator needs to add the user IDs from their external Windows AD server to all 3 local server groups of the system.

B. Once external LDAP support has been disabled from the system, the required users need to be
recreated as local users.

C. User IDs from the external Windows AD server do not need to be added to the local server groups of the system.

D. If external LDAP is disabled, then external users do not need to be recreated, they will automatically authenticate locally.

Reference: https://www.ibm.com/docs/en/cloud-paks/cloudpak-data-system/2.0