The following is an aggregate plan. The following are the requirements and other data for the upcoming 6 months. a. Produce utilizing a chase demand by varying the workforce based on prior demand. What is the overall cost of the plan ? b. Did you backorder any sales in the prior month calculation. If so, how many? c. How many units did you decrease (layoff) during the 6-month planning period, and what was the cost ? d. Produce utilizing a chase strategy based on the current month. What is the overall cost ? e. Using a level production strategy based on 850 units per month, what is the overall cost of the plan ? f. Based on a mixed strategy, with a level production rate of 600 , then utilizing subcontracting with a cap of 300 - what is the total cost of this plan ? g. What was the total cost of subcontracting ? h. What plan should you adopt, based on cost