4. Flair furniture Ltd. has 3 plants and 3 warehouses. The plants are Dallas, Evansville and Fortlauderdale. The warehouses are at Alabama, Boston and Cleveland. The transportation table below gives the total capacity and total requirement of the plants and warehouses with their transportation cost per unit of furniture transported from each plant to each warehouses. From To Alabama (A) Boston (B) Cleveland (C) Factory Capacity (Supply) Dallas (D) an 4 3 200 Evansville (E) 8 4 3 3 600 9 7 5 600 Fortlauderdale (F) 600 400 400 1400 Requirement (Demand) Requirement: a) Find the initial feasible solution by North West Corner Rule (NWCR) b) Develop a network model of the stated transportation problem. c) Construct a transportation schedule. d) Calculate the transportation costs