You manage your Hyper-V environment by using Microsoft System Center Virtual Machine Manager （VMM） 2008 R2. You plan to perform a virtual-to-virtual （V2V） conversion of existing VMware virtual machines （VMs）. You need to choose a type of virtual disk that is supported by VMM. Which type should you choose？（）

A. vmfs
B. vmfs raw
C. vmfs Raw Device Map
D. vmfs Pass through Raw Device Ma