How can custom roles be defined and users assigned to these roles in Cloud Pak for Data?

How can custom roles be defined and users assigned to these roles in Cloud Pak for Data?
A . By editing the platform’s core configuration files.
B . Utilizing the User Management section of the Cloud Pak for Data UI.
C . Custom roles are not supported; only pre-defined roles can be used.
D . Sending a request to IBM support to create custom roles.

Answer: B