Cam Corporation makes two products, Product A and Product B. Operating information from the previous year is as follows: Product A Product B Sales price per unit $ 17.00 $10.00 Variable cost per unit $ 14.00 $8.00 Total labor hours used per unit 4 hours 2 hours The firm is limited to the use of 8,000 labor hours. The firm should produce: O Product B because it has the lowest variable cost Product B because it has the highest contribution margin per labor hour O Product A because it has the highest contribution margin per labor hour Product A because it has the highest contribution margin