Your company plans to deploy eight file servers that run Windows Server 2008 R2. All file servers will connect to Ethernet switches.  You need to plan a data storage solution that meets the followingrequirements：   èAllocates storage to the servers as needed èUtilizes the existing network infrastructure  èMaximizes performance  èMaximizes fault tolerance   Which actions should you include in your plan？（）

• A、Install Windows Server 2008 R2 Datacenter on each server. Deploy the servers in a failover cluster. deploy an iSCSI storage area network （SAN）.
• B、Install Windows Server 2008 R2 Standard on each server. Deploy the servers in a Network Load balancing （NLB） cluster. Implement RAID？5 on each server.
• C、Install Windows Server 2008 R2 Enterprise on each server. Deploy the servers in a failover cluster. deploy a Fibre Channel （FC） storage area network （SAN）.
• D、Install Windows Server 2008 R2 Enterprise on each server. Deploy the servers in a Network Load balancing （NLB） cluster. Map a network drive on each server to an external storage array.