Examine the following command:ALTER SYSTEM SET enable_ddl_logging=FALSE;Which statement is true?（）
- A None of the data definition language (DDL) statements are logged in the trace file.
- B Only DDL commands that resulted in errors are logged in the alert log file.
- C A new log.xml file that contains the DDL statements is created, and the DDL command details are removed from the alert log file.
- D Only DDL commands that resulted in the creation of new database files are logged.