You have a Windows Server 2008 R2 Hyper-V server. Hyper-V Manager shows a state of Paused and a status of Disk（s） running out of space for one of the virtual machines （VMs）. You delete several unneeded snapshots from the VM snapshot tree， and you resume the VM. After less than one minute， the state of the VM reverts to Paused. You need to enable the VM to return to a state of Running. What should you do first？（）
- ATurn off the VM.
- BExport the VM.
- CReset the VM.
- DSave the VM.