Which two are true about creating pluggable databases (PDBs) using snapshots in Oracle 19c and later releases? (Choose two.)

A. A PDB snapshot is always a full copy of the source PDB.

B. A PDB snapshot is always a sparse copy of the source PDB.

C. A snapshot copy PDB depends on a storage snapshot which can only be stored on specific file systems.

D. A PDB snapshot depends on a storage snapshot which can be stored on any file system.

E. A PDB snapshot depends on a storage snapshot which can only be stored on specific file systems.

F. A snapshot copy PDB depends on a storage snapshot which can be stored on any file system.

G. A snapshot copy PDB can be created from a stand-alone clone PDB.