Mark works as a Network Administrator for NetTech Inc. The company has a Windows Server 2008 domain-based network. Mark wants to implement Network Policy Server as a role service on the Windows Server 2008 R2 computer in the network. Which of the following editions of Windows Server 2008 R2 include Network Policy Server? Each correct answer represents a complete solution. Choose three.
A. Windows Server 2008 R2 Datacenter
B. Windows Web Server 2008 R2
C. Windows Server 2008 R2 Standard
D. Windows Server 2008 R2 Enterprise
