You work as the Exchange administrator at Company.com.The Company.com network contains an Exchange Server 2010 Organization.You are responsible for managing the Exchange network for Company.com.The network contains numerous Mailbox servers.During the course of the week you receive an instruction from the CIO to determine the message latency between the Mailbox servers in the organization.What should you do？（）

• A、Your best option would be to increase the MSExchangeMailSubmission diagnostic logging level to Expert.
• B、Your best option would be to run the Test-Mailflow cmdlet.
• C、Your best option would be to increase the MSExchangeTransport diagnostic logging level to Expert.
• D、Your best option would be to run the Test-OutlookConnectivity cmdlet.