You have an Exchange organization.All servers in the organization have Exchange Server 2010 Service Pack 1 （SP1） installed.All servers run Windows Server 2008 R2.The organization contains Mailbox servers， Client Access servers， and Hub Transport servers only.You need to identify which user accounts are associated with the largest mailboxes in the organization. What should you do？（）

• A、Modify the Server Diagnostic Logging Properties.
• B、Run the Get-User cmdlet.
• C、Review the Application event log.
• D、Review the connectivity logs.
• E、Enable SMTP protocol logging.
• F、Modify the Log Settings from the properties of the Hub Transport server.