Your network consists of a single Active Directory domain. The network contains a file server that runs Windows Server 2008 R2. All servers use internal storage only. You plan to deploy a client/server application.   You need to deploy the application so that it is available if a single server fails. You must achieve this goal  while minimizing costs. What should you do？（）

• A、Deploy RemoteApp.
• B、Deploy a failover cluster that uses No Majority： Disk Only.
• C、Deploy a failover cluster that uses Node and File Share Disk Majority.
• D、Deploy Distributed File System （DFS） and configure replication.