Yournetworkincludestheserversshowninthefollowingtable.Youmanageyourexistingvirtualenvironm

Yournetworkincludestheserversshowninthefollowingtable.YoumanageyourexistingvirtualenvironmentbyusingMicrosoftSystemCenterVirtualMachineManager（VMM）2008R2.YouaredesigningahighlyavailableHyper-Vsolution.Youneedtominimizethedowntimeofvirtualmachines（VMs）duringmaintenanceperiods.Whataretwopossiblewaystoachievethisgoal？（）

A.CreateahostgroupthatcontainsServer1andServer2，andplaceeachVMonNFSstorage

B.CreateaHyper-VfailoverclusterofServer1andServer2，andplaceeachVMonaseparatesharediSCSIlogicalunitnumber（LUN）

C.CreateaHyper-VfailoverclusterofServer3andServer4，andplaceallVMsonasingleFibreChannellogicalunitnumber（LUN）

D.CreateaHyper-VfailoverclusterofServer3andServer4，andplaceallVMsonasingleiSCSIlogicalunitnumber（LUN）thatisconfiguredasaClusterSharedVolume（CSV）