You are evaluating the implementation of two Hyper-V hosts for the application servers. You need to design a solution that will move the application servers automatically between the Hyper-V hosts based on the physical resources available. The solution must minimize the number of Microsoft System Center products deployed to the network. Which software should you include in the design？（）

• A、Microsoft System Center Operations Manager
• B、Microsoft System Center Virtual Machine Manager
• C、Microsoft System Center Data Protection Manager
• D、Microsoft System Center Configuration Manager