Which three statements about common and local roles are true?
A.
When a role is granted to a user, the privileges in the role are limited to the context of the PDB.
B.
Local roles can be granted only to local users.
C.
Common roles can be granted to both local and common users.
D.
A user can create common roles if the user has the CREATE ROLE privilege, and SET CONTAINER for all
PDBs
E.
Common roles can be created in the root and PDBs.
Explanation:
https://docs.oracle.com/database/121/DBSEG/authorization.htm#DBSEG834