Your company has a main office and 10 branch offices. You have an Exchange Server 2010 organization.  All Exchange servers are installed on virtual machines.  You need to create a monitoring plan for the Exchange servers that meets the following requirements：.Identify Exchange server errors .Provide alerts when Exchange services are stopped.Produce statistical analysis and reporting Which tool should you include in the plan？（）

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