You have a server that runs the Remote Desktop Gateway (RD Gateway) role service. Users need to connect remotely through the gateway to desktop computers located in their offices.

You create a security group named Remote1 for the users who need to connect to computers in their offices.

You need to enable the users to connect to the RD Gateway.

What should you do?

A.
Add the Remote1 security group to the local remote desktop users group on the RD Gateway server.

B.
Create a connection authorization policy. Add the Remote1 security group and enable Device redirection.

C.
Create a resource authorization policy. Add the Remote1 security group and enable Users to connect to any resource.

D.
Create a Group Policy object and enable the Set RD Gateway authentication method properties to Ask for credentials, use Basic protocol. Apply the policy to the RD Gateway server.

Explanation:
Remote Desktop connection authorization policies (RD CAPs) allow you to specify who can connect to an RD Gateway server.

Source: http://technet.microsoft.com/en-us/library/cc753324.aspx