You have an Active Directory Domain Services (AD DS) domain. All servers run Windows Server 2008 R2. The Remote Desktop Services (RDS) environment includes a Remote Desktop Session Host (RD Session Host) server in the LAN environment, and a Remote Desktop Gateway (RD Gateway) server in the perimeter network. You deploy a Remote Desktop Web Access (RD Web Access) server in the perimeter network. You publish a RemoteApp application. The RemoteApp application is not visible to users when they log in to RD Web Access. You need to ensure that authorized users can run RemoteApp applications from RD Web Access. What should you do?（）

• A、Restart the World Wide Web Publishing Service on the RD Web Access server.
• B、Disab le Forms Authentication on the Default Web Site on the RD Web Access server.
• C、Allow Windows Management Instrumentation (WMI) communication between the RD Gateway server and the RD Session Host server.
• D、Allow Windows Management Instrumentation (WMI) commu nication between the RD Web Access server and the RD Session Host server.