Examine the following scenario： The target database instance is running. The most recent backup available for the target database was taken two days ago. Log files switches have occurred in last two days. The target database is duplicated on the same host， using the Recovery Manager （RMAN） duplicate command as follows： RMAN> RUN { ALLOCATE AUXILIARY CHANNEL aux 1 DEVICE TYPE DISK； DUPLICATE TARGET DATABASE TO auxdb； } Which statement is true about the duplicate database in this scenario？（）
A、 It contains data till the last backup
B、 It contains all data from target database until the current time
C、 It contains all data from only the committed transactions in the target database
D、 It contains all data except that which is used by the transactions in the current online redo file of target database