(see image attached)

What is the contribution margin per limited resource for the Standard model?

a. $37.50

b. $45.25

c. $47.80

d. $50.30

P20-4A Tanek Industries manufactures and sells three different models of wet-dry shop vacuum cleaners. Although the shop vacs vary in terms of quality and features, all are good sellers. Tanek is currently operating at full capacity with limited machine time. Sales and production information relevant to each model follows. Product Standard Economy $30 $16 0.5 Selling price Variable costs and expenses Machine hours required $50 Deluxe $100 $46 1.6 $20 0.8