View the Exhibit to observe the roles assigned to the SL_REP user.  Which statement is true about theassignment of the SELECT_CATALOG_ROLE role to the SL_REP user（）

• A、The user must enable the role explicitly.
• B、The user can grant the role to other users.
• C、The user cannot use the role until the DBA enables it explicitly.
• D、The user can start using the role immediately without any changes