which one occurs?

You have modeled a Composite X for which the following fault policy action has been configured
for remote faults:
<Action id=”ora-retry”>
<retry>
<retryCount>2</retryCount>
<retryIntrval>2</retryIntrval>
<exponentialBackoff/>
</retry>
</Action>
At runtime, when a remote fault occurs on at outbound invoke, this ora-retry action is triggered.
After the two configured retries are exhausted, which one occurs?

A.
The transaction of Composite X rolls back.

B.
The instance is marked “open.faulted” and is available for auto-recovery.

C.
The instance is marked “closed.faulted” and is available for error recovery from Enterprise
Manager where the user can choose actions on the instance such as replay, rethrow, and abort.

D.
The default retryFailureAction is initiated and it rethrows the error back to the caller service.

Explanation:
http://docs.oracle.com/cd/E15586_01/integration.1111/e10224/bp_faults.htm