3 Assume a company makes only three products, A, B, and C: Product A Product B Product C Estimated customer demand in units 700 Selling price per unit Variable cost per unit $ 80 600 $ 65 800 $ 45 $ 35 $ 26 $ 20 2.5 3.0 1.25 Machine-hours per unit The company has only 2,000 machine-hours available. What is the highest total contribution margin that the company can earn if it makes optimal use of its constrained resource?