An auto service facility does only oil changes. It can handle an average of 6 cars per hour, but it varies with each car. Customers arrive at an average of 5 cars per hour but this also varies. Management makes changes so that the oil change is automated and takes exactly 10 minutes per vehicle. They also insist that customers make appointments and customers arrive at exactly 12 minute intervals. What will happen as far as waiting lines? O A. Waiting lines will increase after these changes are made O B. There will be no waiting lines after these changes are made. C. Waiting lines will be reduced after these changes are made. D. There will be no difference in waiting lines since the capacity and the utilization of the operation remain the same