Bob Carlton's golf camp estimates the workforce requirements for its services over the next two years in the accompanying table. Click the icon to view the workforce requirements. Assume that Carlton is permitted to employ some uncertified, part-time instructors, provided they represent no more than 15 percent of the total workforce hours in any quarter. Each part-time instructor can work up to 240 hours per quarter, with no overtime or undertime cost. Labor costs for part-time instructors are $11 per hour. Hiring and training costs are $1,750 per uncertified instructor, and there are no layoff costs. a. Consider the following proposed low-cost, mixed-strategy plan: Total cost for this plan would be $ . (Enter your response as an integer.) b. Having a workforce consisting of both regular and temporary employees A. reduces hiring and firing of certified instructors. B. reduces overtime. C. reduces total costs. D. a and b only. E. b and c only. F. all of the above