Find an initial solution to the following transportation problem. From - A $10 $12 B $19 $13 $18 80 Supply 150 150 70 $17 Z $14 $20 120 Demand 60 Based on the given demand and supply, the given transportation problem is unbalanced Before finding the initial solution, a dummy destination should be introduced. The starting solution using northwest-corner method is: (Note: You must enter a shipment in every cell, even if the shipment is 0.) Supply $19 150 $13