Just need help solving this one question please

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Homewood Furniture manufactures a small table and a large table. The small table sells for $900, has variable costs of $560 per table, and takes 10 direct labor hours to manufacture. The large table sells for $1,500, has variable costs of $980, and takes eight direct labor hours to manufacture. Calculate the contribution margin per direct labor hour for the large table. (Round your answer to the nearest cent.) O A. $42.50 per direct labor hour O B. $34.00 per direct labor hour OC. $52.00 per direct labor hour OD. $65.00 per direct labor hour