Please show steps in excel and solver. Thank you :)

The A\&B Supermarkets have 3 warehouses A, B, and C, that ships supplies to their 3 stores. Their costs of shipping per unit are given below: The capacities of A, B, and C are 240, 360, and 200 units, respectively, while the demands of stores 1, 2, and 3 are 400,250 , and 150 , respectively. [Notice that the total supplies = total demands!] a) Formulate the transportation problem to minimize total cost for shipping. Please provide the actual shipping schedule derived from Solver. b) If the shipping routes can be changed so that the supplies can be transshipped from warehouse to warehouse, store to store, and even store to warehouse, would you recommend a new set of shipping routes if any of the transhipment routes cost is fixed at $2 per unit regardless of the route. c) If your recommendation is affirmative, what would be the new total cost of shipping, and what would be the new routes? If your recommendation is negative, explain briefly why