You are setting up a Visual Studio Team Foundation Server 2010 environment. The environment includes a Microsoft SQL Server 2008 cluster. You need to ensure high availability and redundancy for the front-end Web servers in the Team Foundation Server environment.
What should you do?

A.
Install a virtual application tier server and create a snapshot.

B.
Install two application tier servers. Use one as a cold-standby.

C.
Install two application tier servers. Use one as a warm-standby.

D.
Install multiple application tier servers with network load balancing.