What is the purpose of importing from an export，and specifying that no rows be imported and that the output goes to a log file？（）

• A、To verify space requirements in the target database before importing.
• B、To generate the SQL for the DDL operations that would occur during import.
• C、To check character set compatibility between the export file and the target database.
• D、To check for integrity constraint violations that would occur in the target database.