The Hub Transport server role resides on an Exchange Server 2007 computer named ExchHub1. Message tracking is enabled. Written company privacy policy states that the subject line of e-mail messages should not be stored in the tracking log. You need to track e-mail messages from ExchHub1 while complying with company policy. Which cmdlet should you run?

A.
Set-TransportServer ExchHub1 -MessageTrackingLogEnabled:$false

B.
Set-TransportServer ExchHub1 MessageTrackingLogSubjectLoggingEnabled:$false

C.
Set-ReceiveConnector -ProtocolLoggingLevel None

D.
Get-MessageTrackingLog -Subject None