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

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

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.