In this problem, a buyer is going to buy anitem fromfive suppliers who have limited capacity and produce defects.The demand is 10,000 units and the buyer does not want to receive more than 180 defects from the suppliers. The buyer incurs a fixed cost for selecting a supplier; for example if the buyer purchases one unit from supplier 1, the cost is 1 unit $1,000,000 + $1,500,000. Use binary variables to incorporate the fixed costs into calculating the total purchasing cost.