The servers on your network run Windows Server 2008 R2. You are planning a two-node Hyper-V failover cluster with SAN storage， and 16 virtual machines （VMs）.  You plan to use quick migration. You need to place the maximum number of VMs on each logical unit number （LUN）. You need to ensure that you can move individual VMs between cluster nodes without affecting other VMs.  How many VMs should you place on each LUN？（）

• A、one
• B、two
• C、four
• D、eight