Which statement is correct?

You want to clone PDB1 and PDB2 into the same CDB. Which statement is correct?

A.
You cannot do this, because you can only clone PDBs into another CDB.

B.
You can clone only one PDB (either PDB1 or PDB2) into the same CDB.

C.
Cloning a PDB can use the source files copy method to the target PDB files.

D.
Cloning a PDB can use the NOCOPY clause if the target PDB files use the source files.