You have a hosted Exchange organization. All servers in the organization have Exchange
Server 2010 Service Pack 1 (SP1) installed.
An internal user named User1 sends a confidential message to another internal user named
User2. User1 does not have any administrative privileges in the organization.
You need to ensure that User1 can identify whether the message was successfully
delivered.
What should you instruct User1 to do?

A.
View the message headers in the sent item folder

B.
Open Microsoft Outlook and modify Read Receipt Settings

C.
Open Microsoft Outlook and modify Delivery Receipt Settings

D.
Open the Exchange Control Panel (ECP) and select Organize E-Mail.