Which four items exist in the root of a CDB, but not in the PDBs?
A.
 shared UNDO and default database temporary tablespace
B.
 Oracle-supplied metadata
C.
 shared Oracle-supplied data
D.
 CDB views providing information across PDBs
E.
 application tablespaces
F.
 local temporary tablespaces
G.
 local users and local roles
H.
 non-shared local metadata