多选题Which three statements are true concerning unplugging a pluggable database (PDB)?（）AThe PDB must be open in read only mode.BThe PDB must be dosed.CThe unplugged PDB becomes a non-cdb.DThe unplugged PDB can be plugged into the same multitenant container
题目
多选题
Which three statements are true concerning unplugging a pluggable database (PDB)?（）
A
The PDB must be open in read only mode.
B
The PDB must be dosed.
C
The unplugged PDB becomes a non-cdb.
D
The unplugged PDB can be plugged into the same multitenant container database (CDB)
E
The unplugged PDB can be plugged into another cdb.
F
The PDB data files are automatically removed from disk.