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