XYZ Corporation operates two plants, each of which has a capacity of 120 units per day. Each day, XYZ must ship their product to each of four customers. Customers A, B, and C each have a demand of 18 units per day while customer D has a demand of 186 units per day. The cost of shipping one unit of each product from each of the two plants to each of the customers is shown in the table below. a. How many units should XYZ ship from each plant to each customer? (Leave no cells blank-be certain to enter "O" wherever required. Round your answer to the nearest whole number.) b. What is the least XYZ will spend on shipping each day? (Round your answers to 2 decimal places.)