Brittany Furniture Manufactures Two Products: Couches and Beds

Brittany Furniture manufactures two products: Couches and Beds.The following data are available:

The company can manufacture two couches per machine hour and one bed per machine hour.The company's production capacity is 900 machine hours per month.
What is the contribution margin per machine hour for couches?

A) $1,700
B) $300
C) $150
D) $250