You want to perform in incomplete recovery of your database.  You plan to use these commands to recover your database：  SET UNTIL TIME = ’2000-12-09：11：44：00’；  RESTORE DATABASE； RECOVER DATABASE；  How should the commands be executed？ （）

• A、Only the SET command must be within a RUN block.
• B、All commands should be executed at the RMAN prompt.
• C、All three commands must be within a single RUN block.
• D、Only the RESTORE and RECOVER commands must be within a single RUN block.