I need answer

-.. 13.9 Mary Rhodes, operations manager at Burnaby Furniture, has received the following estimates of demand requirements: a) Assuming stockout costs for lost sales of $100 per unit, inventory carrying costs of $25 per unit per month, and zero beginning and ending inventory, evaluate these two plans on an incremental cost basis: - Plan A: Produce at a steady rate (equal to minimum requirements) of 1000 units per month and subcontract additional units at a $60 per unit premium cost. - Plan B: Vary the workforce, which performs at a current production level of 1300 units per month. The cost of hiring additional workers is $3000 per 100 units produced. The cost of layoffs is $6000 per 100 units cut back. b) Which plan is best and why