Which statement about Online Move Data file is true? 

Answer options:

A. Moving a data file online prevents DML operations on segments stored in the data file.
B. Flashing back a database to a point in time before a data file had been renamed online retains the new name.
C. Moving a data file online can be performed if the data file is in OFFLINE mode.
D. Moving a data file online cannot be performed if the data file is under BEGIN BACKUP.

B