You are developing a BizTalk orchestration. The orchestration executes in the following sequence.

Message Received
Atomic Transaction Start
Message Sent 1
Message Sent 2
Atomic Transaction End

You need to identify where persistence points occur in the orchestration. What should you identify?

A.
There is one persistence point that occurs at Atomic Transaction Start.

B.
There are two persistence points, one occurs at Atomic Transaction Start and one occurs at Atomic Transaction End.

C.
There is one persistence point that occurs at Atomic Transaction End.

D.
There are five persistence points: one each at Atomic Transaction Start, Atomic Transaction End, Message Sent 1, Message Sent 2, and Message Received.