2. The town of Boulton is putting up for bids four used police vehicles. The town will allow individuals to make bids on all four vehicles but will accept only one bid per individual. Four individuals have made the following bids: Vehicle Individual Chevrolet Ford Plymouth AMC Alice 2,100 2,000 2,200 2,000 Bruce 2,250 2,100 2,050 2,050 Charles 2,150 2,050 2,000 2,1 50 Dora 2,200 2,050 2,050 2,100 a. Find the optimal assignment by the Hungarian Method. What will the total revenue be? (15 pts.) b. Formulate and solve a spreadsheet model for this problem. ((15 pts.) c. If multiple optimal solutions exist, provide all the optimal assignment solutions. (5 pts.)