DI 9.2-3. Consider the transportation problem having the follow- ing parameter table: Destination 1 2 3 4 5 6 Supply 1 13 10 22 2 29 18 0 5 2 14 13 16 21 M 0 6 Source 3 3 0 M 11 6 0 7 4 18 9 19 23 11 0 4 5 30 24 34 36 28 0 3 Demand 3 5 4 5 6 2 Use each of the following criteria to obtain an initial BF solution. Compare the values of the objective function for these solutions. (a) Northwest corner rule. (b) Vogel's approximation method. (c) Russell's approximation method.