Assume a company makes only three products, A, B, and C: Selling price per unit Variable cost per unit Machine-hours per unit Product A $ 75 $ 35 1.50 Product B $65 $25 3 Product C $ 45 $ 20 1.5 The company does not have enough machine-hours available to satisfy demand for all of its products. Product A's contribution margin per unit of the constraining resource is closest to: Multiple Choice $40.00. $26.67 $60.00. $41.00