$5.$ Rework problem $4$b using this additional information: Expansion would result in an increase of $$70,000$ per year in transporation costs, subcontracting would result in an increase of $$25,000$ per year, and adding a new location would result in an increase of $$4,000$ per year.$4$b$.)$ A company that produces pleasure boats has decided to expand one of its lines. Currently facilities are insufficent to handle increased workload, so the company is considering three alternatives A$)($new location$)$ B$)$ subcontract C$.)($expand existing facilities$).$ b$.)$ which alternative would wielg the lowest total cost for an expected annual volume of $150$ boats?