a. Find a workforce plan using the level strategy that allows for no delay in sorvice. It should rely only on overtime and the minimum amount of undertima necessary. What is the total cost of the plan? (Enter your response as an integer.) b. Use a chase strategy that varies the workforce level without using overtime or undertime. What is the total cost of this plan? s Enter your response as an integer) an integer.) c. Consider the following proposed plan for a different demand scenario. In this case, each certified instructor puts in 480 hours per quarter tegular time. All other cost and capacity values are the same as above. Eacti certified instructor puts in 480 hours por puarter regilar time and can work an additional 120 hours overtime. Regular-tirno wages and benefits cost Carlion $7.200 per employee per quarter for regular time worked up to 480 hours, with an overtime cest of $20 per hour. Unused regular time for certified instructors is paid at $15 per houir, Thore is no cost for unused overtime capacty. The cost of hiring, training. and certifying a new employee is 510,000 . Layoff costs are \$4, 000 per employee. Currenty B employees work in this capacity