Your company has an Active Directory domain. All servers in the domain run Windows Server 2008. The Terminal Services Gateway （TS Gateway） role service is installed on a server named Server1. The Terminal Services role is installed on servers named Server2 and Server3. Server2 and Server3 are configured in a load balancing Terminal Server farm named TSLoad. You install and configure the Terminal Services （TS） Session Broker service on a new server named Server4. You need to configure Server2 and Server3 to join the TS Session Broker. What should you do next？（）

A. Configure Server2 and Server3 to use the TS Gateway role service to access TS Session Broker.
B. Create a new Group Policy object （GPO） that assigns Server4 to Server2 and Server3 as their session broker server. Apply the GPO to Server2 and Server3.
Configure a Group Policy object （GPO） to set the Set TS Gateway server address option in the Terminal Services Security section to Server1. Apply the GPO to all client computers.
D. Configure a Group Policy object （GPO） to set the Require secure RPC communications option in the Terminal Services Security section to False. Apply the GPO to Server2 and Server3.