Select the scenario that best describes an increase in total factor productivity as it relates to workers. a. With the updating of new software, the billing department can process more bills for clients in less time. b. With the updating of new work schedules, the billing department now can process bills for clients seven days a week. c. With the addition of 10 new workers, the billing department is able to increase its output, which is processing bills for clients. d. With the addition of 10 new computers, the billing department is able to hire more workers to process bills for clients.