Which three statements represent the difference between a container database (CDB)and a non-container database? 

Answer options:

A. A container database has exactly one seed PDB, and a non-container database has no seed PDB.B. In a newly created non-CDB that does not yet contain user data, the data dictionary contains only system metadata. When application users create their own objects, this metadata is mixed with the system metadata. In a CDB, the data dictionary metadata is split between the root and the PDBs. The data dictionary in the PDB contains pointers to the data dictionary in the root.
C. New views are introduced. Next to DBA_views, AIL_-views, and USER_-views, there are CDB_-views. Both CDB and non-CDB databases can access this information.
D. You are allowed to create only a single HR user in a non-CDB database. This restriction is identical for a CDB database.
E. Every PDB in a CDB has its own control file. A non-CDB, which has no containers, needs only one control file.

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