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Alpha Corporation is preparing an aggregate production plan for widgets for the next four months. Alpha's expected monthly demand is summarized in the following table. Alpha will have 50 widgets in inventory at the beginning of the first month and wishes to maintain at least that number at the end of each month. Following is other critical data: Production cost per unit = $50; Inventory carrying cost per month per unit = $10 (based on ending month inventory); Hiring cost per worker = $300; Layoff cost per worker = $200; Beginning number of workers = 16; Each worker can produce 50 units per month. Beginning Inventory: 50 Beginning Workers: 16 Regular Overtime Month Demand Production Ending Workers Hire Fire Inventory Required 1 1,000 2 1,200 1,500 4 1,300 1,000 widgets 1,250 widgets 1,500 widgets None of the above