One of the tablespaces is read-only in your database. The loss of all control files forced you to re-create the control file. Which operation do you need to perform after re-creating the control file and opening the database？（）
- A drop and re-create the read-only tablespaces
- B rename the read-only data files to their correct file names
- C change the tablespace status from read/write to read-only
- D re-create the read-only tablespace because it is automatically removed