In the MBA program at a prestigious university in the Pacific Northwest, students bid for electives Time left 0:59:11 year of their program. Each student has 100 points to bid (total) and must take two electives. There are four electives available: Management Science, Finance, Operations Management, and Marketing. Each class is limited to 5 students. The bids submitted for each of the 10 students are shown in the table below. Formulating such a problem as an assignment problem, the number of decision variables is: Management Science Operations Management Marketing Student Finance George 60 10 10 20 Fred 20 20 40 20 Ann 45 45 5 5 Eric 50 20 5 25 Susan 30 30 30 10 Liz 50 50 0 0 Ed 70 20 10 0 David 25 25 35 15 Tony 35 15 35 15 Jennifer 60 10 10 20 a. 40 b. 50 Oc. The problem cannot be formulated as an assignment problem. Od 25 e.20