c. Use the transportation simplex to find an optimal solution to the problem (first iteration only). 8. Four cargo ships will be used for shipping goods from one port to four other ports (labeled 1, 2, 3, 4). Any ship can be used for making any one of these four trips. However, because of differences in the ships and cargoes, the total cost of loading, transporting, and unloading the goods for the different shipport combinations varies considerably, as shown in the following table: (15 point) The objective is to assign the four ships to four different ports in such a way as to minimize the total cost for all four shipments. a) Describe how this problem fits into the general format for the assignment problem. b) Obtain an optimal solution. c) Reformulate the problem as an equivalent transportation problem by constructing the appropriate parameter table. d) Use Vogel's approximation methods to find the initial solution for questions c)