answer all parts please

Use the following data to develop a level aggregate plan using inventory and backorder. Cost data Regular time labor cost per hour $10 Overtime time labor cost per hour $15 Subcontracting cost per unit $80 Back order cost per unit per period $20 Inventory holding cost per unit per period $10 Hiring cost per employee $400 Firing cost per employee $500 Capacity data Beginning workforce 40 employees Beginning inventory Beginning back orders O units Labor standard per unit (hours) 2 hours of labor per unit o unitt Regular time available per period (hours) 160 hours per period per employee 30 hours per period per employee Overtime time available per period (hours) Demand data Period 1 Period2 Period3 Period 4 Periods Periodo Period Periods 4,000 3,800 3,200 3,280 2,680 4,340 4,820 4,600 entific a. what is the production rate? you! Select one: O a. 3680 O b. 4000 O c. 4500 m O d. 3840 Use the data given above to develop a level aggregate plan using inventory and back order. b. what is the size of workforce? Select one: a. 48 b. 192 O c. 24 O d. 46 Use the data given above to develop a level aggregate plan using inventory and back order. c. how many more workers should be hired at the beginning of planning? Select one: O a. 16 O b. 8 O c. 152 Od. 6 e. o