In planning next month's The Bofin Company has a machine capacity of only 5,000 machine hours per month. production, the following data have been prepared for products A, B, and C. A B $15 $12 4 Sales price per unit $14 Variable cost per unit Contribution Margin per unit $_7 Machine hours required $_9 se 6 8 10 per unit Assuming that the firm must produce 100 units of Product C because of a long-term contract, what additional products should be produced? 500 B 666 A 400 C 400 A and 200 E Cannot be determined