Your network contains an Active Directory domain named contoso.com. All domain controllers  and member servers run Windows Server 2008. All client computer run Windows 7.  From a client computer， you create an audit policy by using the Advanced Audit Policy  Configuration settings in the Default Domain Policy Group Policy object （GPO）.   You discover that the audit policy is not applied to the member servers.    The audit policy is  applied to the client computers.   You need to ensure that the audit policy is applied to all member servers and all client computers.     What should you do（）

A、Add a WMI filter to the Default Domain Policy GPO

B、Modify the security settings of the Default Domain Policy GPO

C、Configure a startup script that runs auditpol.exe on the member servers.

D、Configure a startup script that runs auditpol.exe on the domain controllers.