Your company has users who connect remotely to the main office though a Windows Server 2008 VPN server. You need to ensure that users cannot access the VPN server remotely from 22：00 to 05：00.  What should you do（　）？ 

• A、Create a network policy for VPN connections. modify the Day and time restrictions.
• B、Create a network policy for VPN connections. apply an ip filter to deny access to the corporate network.
• C、Modify the Logon hours for all users objects to specify only the VPN server otn he computer restrictions option
• D、Modify the Logon hours for the default domain policy to enable the Force logoff when logon hours expire option.