Which statement is true about the Request-Reply pattern? 

With a service response-time SLA, the service consumer always receives confirmation of work completion from the service provider. 

With a service response-time SLA, the service consumer is always in a position to detect breakdowns. 

Without a service response-time SLA, the service consumer will never receive confirmation of work completion from the service provider. 

Without a service response-time SLA, the service consumer is always in a position to detect breakdowns.