Your network has Network Access Protection (NAP) deployed. The network contains two servers named Server1 and Server2. Server1 is a Network Policy Server (NPS). Server2 has a third-party antivirus solution installed.Server1 is configured to use a custom system health validator provided by the antivirus vendor. The system health validator uses Server2 to identify the version of the current antivirus definition.You need to ensure that NAP clients are considered noncompliant if Server1 cannot connect to Server2.Which error code resolution setting should you configure？（）

• A、SHA not responding to NAP client
• B、SHA unable to contact required services
• C、SHV not responding
• D、SHV unable to contact required services