Consider the transportation table below. The solution displayed was obtained by performing some iterations of the transportation method on this problem. What is the current cost of the plan that would be obtained by performing one more iteration of the stepping-stepping stone method on this problem? Check whether or not the solution is feasible by calculating the index for all empty or unoccupied cells. ki7 Destination Source 1 2 3 Supply A 4 6 8 30 20 10 B 9 3 7 40 40 C 5 12 10 30 20 10 Demand 40,000 30,000 20,000 100