You are designing a Windows Azure application.
The application will use a Windows Azure AppFabric Service Bus message buffer.
You need to recommend an approach for ensuring that only authorized users can discover and use the message buffer.
What should you recommend?

A.
Make the message buffer discoverable to listeners and require authorization.

B.
Make the message buffer discoverable to managers and do not require authorization.

C.
Make the message buffer publicly discoverable.
Include a Simple Web Token (SWT) in each message.

D.
Make the message buffer discoverable to managers.
Include a Simple Web Token (SWT) in each message.