A corporate environment includes Exchange Server 2010 SP1 and an Active Directory Domain Services (AD DS) domain. Client computers run Microsoft Outlook 2010. You need to recommend an approach for identifying when a mailbox is accessed by someone other than the mailbox owner.

What should you recommend?

A.
Search the message tracking logs.

B.
Run the Get-LogonStatistics cmdlet.

C.
Run the Search-AdminAuditLog cmdlet.

D.
Run a report from the Exchange Control Panel (ECP).