You executed the following command to start the database： 
SQL> STARTUP 
ORACLE instance started. 
Total System Global Area 281018368 bytes 
Fixed Size 789000 bytes 
Variable Size 229635576 bytes 
Database Buffers 50331648 bytes 
Redo Buffers 262144 bytes
ORA-00205： error in identifying controlfile， check alert log for more info 
Which view would you query at this stage to investigate this missing control file？（）

A.The database instance aborts.
B.The database operation temporarily halts till the member becomes available.
C.Writing proceeds as normal. LGWR writes to the available members of a group and ignores the unavailable members.
D.The member would be marked as STALE and an error message would be written to the alert log file and LGWR trace file.
E.The status of the group changes to INACTIVE and an error message would be written to the alert log file and LGWR trace file.

A.the port used by the listener
B.the protocol used by the listener
C.the server name where the listener runs
D.the log file and trace file destination for the listener
E.the database services to be registered with the listener

A.by using the SQL access advisor
B.by using the Automatic Workload Repository report
C.by running the Automatic Database Diagnostic Monitor （ADDM）
D.by using the Automatic Workload Repository Compare Period report
E.by analyzing the output of the V$ACTIVE_SESSION_HISTORY view