2. Geng Company produces three models of a component, Model A, Model B, and Model C. The unit contribution margins for Model A, B and C are $10, S8, and 6S, respectively. Each model must spend time on a special machine. The firm owns two machines that together provide 4,000 ours of machine time per year. Model A requires 30 minutes of machine time; Model B requires 15 minutes of machine time; Model C requires 6 minutes. Now suppose that Geng Company can sell only 10,000 units of each model. How many units of Model A should be produced