A company has two existing branches, E1 and E2. They have to increase their capacity by opening another branch which it must be selected form one of the alternatives of A1 and A2. The company's customers are located in C1, C2, and C3. How much is the minimum total cost by using the Northwest method between these two alternatives? Locations C1 C2 03 Capacity E1 30 18 24 4500 E2 40 26 27 4500 A1 45 42 38 A2 25 15 22. Demand 3500 2800 5700