Lie Around Furniture manufactures two products: Couches and Beds. The following data are available: Couches Beds Sales price $510 $750 Variable costs $360 $375 The company can manufacture either 3 couches per machine hour or 1 bed(s) per machine hour. The company's production capacity is 1,800 machine hours per month What is the contribution margin per machine hour for couches? O A $450 OB. $150 OC. $2,610 OD $600