Scenario Question (20 points): Fred's Fabrication has the following aggregate demand requirements and other data for the upcoming four quarters. Quarter Demand Previous quarter's output 800 units 1 700 Beginning inventory 0 units 2 900 Stockout cost $100 per unit 3 1200 Inventory holding cost $10 per unit at end of quarter 4 600 Hiring workers $20 per unit Laying off workers $40 per unit Subcontracting cost $200 per unit Unit cost $100 per unit Which of the following production plans is better: Plan Achase demand by hiring and layoffs; Plan Bpure level strategy, or Plan C700 level with the remainder by subcontracting ( Show your explanation and calculation to earn full credit )?