During recovery， you need to know if log sequence 11 is in the online redo logs， and if so， you need to know the names of the online redo logs so you can apply them during recovery. 
Which view or views would you use to determine this information？（） 

A. Restore the archived redo log that is missing and attempt recovery again.
B. Recovery is complete and you can open the database.
C. Recovery needs redo that is not available in any archived redo log. Attempt to apply an online redo log if available.
D. Recover the entire database and apply all archived redo logs again.
E. Recovery is not possible because an archived redo log has been lost.

A. Restore and recover the datafile.
B. Restore and recover the tablespace.
C. Restore and recover the database.
D. Restore and recover the control file.
E. Restore and recover the parameter file.

A. The system change number， which is a point in time relative to transactions within a given database.
B. A number that represents time. Thus， at 1300 hours， the SCN is the same on all databases. 
C. The security change number， which represents the security code that is needed to access any database structure.
D. A conversion factor that converts internal database time to external clock time.
E. UTC time in the database，providing a standardized way of tracking time in Oracle.