Which role can manage multiple knowledge bases?

`knowledge_base_admin` is not the standard out-of-the-box role for this purpose in ServiceNow.

`kb_admin` is not the standard out-of-the-box role for this purpose in ServiceNow.

`sn_kb_admin` is not the standard out-of-the-box role for this purpose in ServiceNow; `sn_` usually denotes scoped applications.

The `knowledge_admin` role is a elevated role specifically designed to manage all aspects of knowledge bases, including creating, configuring, and managing multiple knowledge bases within a ServiceNow instance. This role grants comprehensive control over the knowledge management application.