You want to deploy web site with less attack surface, high available solution with minimal cost.
Which one would you recommend?
What should you recommend? (More than one answer choice may achieve the goal. Select the BEST answer.)

A.
Windows Server 2008 R2 Enterprise full installation

B.
Windows Server 2008 R2 Standard full installation

C.
Windows Server 2008 R2 Web Server Core installation

D.
Windows Server 2008 R2 Web full installation

Explanation:
High availability for NET web-based application requires Network Load Balancing (NLB) Clustering, which is
available in all editions of Windows Server 2008 and 2008 R2.
MS Self-Paced Training Kit 70-646 (2nd Edition), p.520