Your database operates in ARCHIVELOG mode and all the tablespaces are online. Due to a user error， you decided to perform an incomplete recovery. Which two tasks would you be required to perform in the recovery process？（）
- A open the database with the RESTRICTED option
- B open the database with the RESETLOGS option
- C recover to the required SCN only that data file in which the error occurred
- D recover all the data files to the same system change number （SCN）