You executed the following query: 
Considering that all the redo logs are available, what information can you derive from the output of the preceding query?
A.The time when the last flashback operation in your database was performed
B.The time when the first flashback operation in your database was performed
C.The approximate time and the lowest system change number (SCN) to which you can flash back your database
D.The system change number (SCN) and the time when the Flashback Database was enabled in the database instance