You have a Windows Server 2008 R2 Hyper-V failover cluster that has 16 nodes.  You plan to load-balance eight virtual machines （VMs） on the Hyper-V failover cluster by using network load balancing （NLB）. You need to ensure that the NLB cluster converges.  What should you do？（）

• A、Set the NLB cluster type to Multicast
• B、Dedicate a virtual network for all NLB traffic
• C、Use static MAC addresses for the parent network adapter
• D、Enable spoofing of MAC addresses on the virtual network adapter