Which of the following statements about CIFS service parameter settings on an OceanStor 9000 storage system is incorrect?

Which of the following statements about CIFS service parameter settings on an OceanStor 9000 storage system is incorrect?

A. When the domain authentication mode is used, local users are not allowed to access CIFS shared directories. B. When the user authentication mode is used, domain users are not allowed to access CIFS shared directories. C. If you want users to access CIFS shared directories without entering user names or passwords, enable the guest mode.