You have a server named Server1 that runs Windows Server 2012 R2. Server1 has the Hyper-V server role installed. An iSCSI SAN is available on the network. Server1 hosts four virtual machines named VM1， VM2， VM3， and VM4. You create a LUN on the SAN. You need to provide VM1 with access to the LUN. The solution must prevent other virtual machines from accessing the LUN. What should you configure？（）

• A、A fixed-size VHDX
• B、A fixed-size VHD
• C、A dynamically expanding VHD
• D、A dynamically expanding VHDX
• E、A pass-through disk