José Martinez of El Paso has developed a polishedstainless-steel tortilla machine that makes it a “showpiece” fordisplay in Mexican restaurants. He needs to develop a 5-monthaggregate plan. His forecast of capacity and demand follows:

	Month 1	Month 1	Month 1	Month 1	Month 1
Demand	150	160	130	200	210
Capacity
Regular	150	150	150	150	150
Overtime	20	20	10	10	10

Additional information: Subcontracting: 100units available over the 5-month period, Beginning inventory: 0units

Costs:

Regular time cost per unit = $100

Overtime cost per unit = $125

Subcontract cost per unit = $135

Inventory holding cost per unit = $3

Assume that back-orders are not permitted.

a. Using the transportation method, what is the total cost ofthe optimal plan?                          [ Select ]                     ["$90,140", "$86,100", "$88,150", "$85,500"]     

b. Does any regular time production go unused?                          [ Select ]                     ["cannot determine", "no", "yes"]        If so/not, how much is usedor not used? 50 units

c. What is the total cost of the plan if ending inventoryrequired for the next planning period is: 20 units (include holdingcosts in the overall calculation)?          [ Select ]                     ["$88,150", "$90,850", "$90,910", "$91,900"]     

please answer all the questions with the right answer thanks