You work as a Server Administrator for company Inc. The company has a virtual server hosted on a Windows Server 2008 server with the Hyper-V role installed. You have upgraded an application on the virtual server. You experience that this upgrade causes problems. Now, you want to quickly revert back to the point before the changes are made. Which of the following will you use to accomplish the task?
A. Virtual Server Migration Toolkit
B. Snapshots
C. Windows System Resource Manager
D. Logical unit number
