You create a virtual machine （VM） on a Windows Server 2008 R2 Hyper-V server. You plan to use this VM as the base image for new VMs. You need to ensure that you can import the base image multiple times on the original host server. In the Import Virtual Machine Wizard，which settings should you configure during each import process？（）

• A、Select the Copy the virtual machine option and the Duplicate all files check box.
• B、Select the Copy the virtual machine option. Clear the Duplicate all files check box.
• C、Select the Move or restore the virtual machine option and the Duplicate all files check box. 
• D、Select the Move or restore the virtual machine option. Clear the Duplicate all files check box.