Your companys Exchange Server 2007 environment consists of a single Exchange organization and the following four servers:
Mailbox server
Hub Transport server
Edge Transport server
Client Access server
A user in your Exchange organization sends a message to a recipient inside your company. The message is not received.
You need to find out the status of the message.
What should you do?

A.
Use the Exchange Best Practices Analyzer

B.
View the queue on the Hub Transport server

C.
View the queue on the Edge Transport server

D.
View the message tracking log on the Edge Transport server