A company has three plants, located at Istanbul, Izmir, and Giresun. At each plant, 250, 350, and 400 thousands of units are produced each month, respectively. The Sales Offices are located at Istanbul, Ankara, Izmir, and Bursa. Customer demands are 150, 250, 300, and 150 thousands of units each month, respectively. The cost of producing one unit at one location, and sending it to a sales office is given at the Table below (TL/unit). Istanbul Izmir Giresun . Istanbul 3 2 8 150 Ankara 1 6 3 250 Izmir 7 5 3 300 Bursa 4 9 2 150 250 350 400 2384 To minimize the cost of meeting each city's demand: Formulate the transportation model (15 points) Find a Basic Feasible Solution (BFS) using the Northwest Corner method (10 points) and calculate the cost (5 points).