Which statement correctly describes the change tracking writer （CTWR） background process？（）
- A It keeps track of changes in the background processes.
- B It records the system change number （SCN） in the control file.
- C It writes audit records for user changes to the change tracking file.
- D It records any changes to the listened configuration in the listener.ora file.
- E It records any changes to the database parameters in the change tracking file.
- F It records the physical location of all the changes that are made to the database in the change tracking file.