Lampara Corporation manufactures two styles of lamps Bedford Lamp and Lowell Lamp. The following per unit data are available: Sales price Variable costs Machine hours required for one lamp Bedford Lamp $27 $17 2 Lowell Lamp $35 $21 6 Total fixed costs are $31,000, and Lampara can sell a maximum of 10,000 units of each style of lamp annually. Machine hour capacity is 20,000 hours per year. What is the contribution margin per machine hour for the Lowell Lamp? (Round your answer to the nearest cent.) O A. $5.00 per machine hour B. $2.33 per machine hour C. $17.50 per machine hour D. $13.50 per machine hour