Enthuware

I think this question need to be clarified. I agree with the fact that it is a BMT. But for the second answer

It must be a stateful session bean.

, nowhere it has been said that transaction should continue or not.
Thanx

It says in requirement 1: Both the methods will be called by the client in the same transaction scope.
So it is clear that the transaction has to continue.

A stateless session bean must either committ or rollback a transaction before it returns.

Is this always true or only for bean managed transactions?

It is true for all stateless session beans. Because the same instance of a bean may be used to service different clients. Therefore, continuing the transaction beyond a method doesn't make sense for stateless SBs.

HTH,
Paul.