please answer the multiple choice part which to chose A, B , or C

Paula Caplin is manager of a major electronics repair facility owned by Fisher Electronics. Recently, top management expressed concern over the growth in the number of repair jobs in process at the facility. The average arrival rate is 110 jobs per day. The average job spends 8 days at the facility. a. What is the current work-in-process level at the facility? jobs. (Enter your response as a whole number.) b. Suppose that top management has put a limit of one-half the current level of work-in-process. What goal must Paula establish? Paula must reduce the time in the system to days. How might she accomplish it? (Mark all that apply.) A. She can affect the rate of customer arrivals through advertising or special promotions. B. She can increase the number of service facilities to increase system capacity. C. She can do a process analysis and improve the work methods at the bottleneck