SK is developing a business process application, and is at a point where he is initiating the process instance. He has used a JNDI lookup to obtain a reference to the process server remote EJB inteface. Next he codes the portlet to start the process witha n input message. Once the process starts,what is returned to the caller by the operation?

When initiating a process instance via a remote EJB interface in business process applications, the operation returns the object ID of the newly created process instance (option C). This ID uniquely identifies the instance for subsequent operations like querying, updating, or completing the process. The process instance name (A) and template name (B) are known before creation and wouldn't be returned. A session bean reference (D) is not what's returned from a start operation.