Which three are true about a whole database backup?
选项：

A:It can be created only by using RMAN
B:It is the only possible backup type for a database in NOARCHIVELOG Mode
C:It can be consistent
D:It can consist of either backup sets or image copies
E:It can be inconsistent
F:It always includes all data files, the current control file, the Server parameter file, and archived redo logs