Your network contains one Active Directory domain. You have a member server that runs Windows Server 2008 R2.You need to immediately disable all incoming connections to the server. What should you do？（）

• A、From the Services snap-in, disable the IP Helper.
• B、From the Services snap-in, disable the Netlogon service.
• C、From Windows Firewall, enable the Block all connections option on the Public Profile.
• D、From Windows Firewall, enable the Block all connections option on the Domain Profile.