9. A company produces three products with the following costs and selling prices: Round Square Triangle Product Name Selling Price Per Unit Variable Cost Per Unit Machine Hours Per Unit $24 $26 $20 $10 4 $10 $12 The company has a limit of 14,600 machine hours available per month. The company has a monthl fixed cost of $30,000. The demand for each of the products is 2,500 units per month. The compa goal is to maximize its profitability Suppose the company can rent a machine that will provide an additional 1,000 machine hou month. What is the maximum monthly rent the company would be willing to pay for this machine A. $2,400 3. $4,200 . $2,000 $2,800 $1,200