Choose three.

A PDB can be plugged into a CDB only if both are of the same Oracle Database release.

An unplugged PDB can be plugged into multiple CDBs simultaneously by sharing data files.

A PDB unplugged from a container database (CDB) can be plugged into a different CDB without altering any of its schemas.

A non-CDB can be converted into a PDB.

A PDB in a remote CDB can be accessed transparently thereby aggregating results from local and remote PDBs.

A PDB created from PDB$SEED must be set to READ WRITE after loading data.

A PDB created from PDB$SEED must be set to READ ONLY after loading data.