Your network contains an Active Directory domain. All domain controllers run Windows Server 2008 R2 Service Pack 1 （SP1）. You need to recommend a design for the Hyper-V host infrastructure that meets the following requirements： - Maximizes storage performance. - Remains available if a host server fails. - Minimizes hardware and software costs. - Supports redundant access to shared storage. What should you include in the recommendation？（）
- AFailover Clustering
- BRemote Desktop Services （RDS）
- CMicrosoft System Center Virtual Machine Manager 2008 R2
- Da Storage Area Network （SAN）
- ENetwork Attached Storage （NAS）
- FNetwork Load Balancing （NLB）
- GMultipath I/O