Which statement about recovering from the loss of a redo log group is true?（）
- A If the lost redo log group is ACTIVE, you should first attempt to clear the log file.
- B If the lost redo log group is CURRENT, you must clear the log file.
- C If the lost redo log group is ACTIVE, you must restore, perform cancel-based incomplete recovery, and open the database using the RESETLOGS option.
- D If the lost redo log group is CURRENT, you must restore, perform cancel-based incomplete recovery, and open the database using the RESETLOGS option.