为自己加油

Which are three of the steps taken by Database Configuration Assistant

(DBCA) to clone a remote pluggable database (PDB) starting from Oracle 19c?

A.
creating a database link from CDB$ROOT in the local database to CDB$ROOT
In the remote system that is to be cloned
B.
creating a database link from CDB$ROOT in the local database to the PDB in
The remote system that is to be cloned
C.
backing up the cloned PDB
D.
opening the cloned PDB
E.leaving the cloned PDB in mount state