A company produces three products, and currently has a shortage of machine hours since one of its two machines is down; only 390 hours are avallable this month. The selling prices, costs, and labor reqquirements of the three products are as follows: Required: a. What is the contribution margin per unit for each product? b. What is the contribution margin per machine hour for each product? c. Assume there is unlimited demand for each product. Which product should the company focus on producing? Complete this question by entering your answers in the tabs below. What is the contribution marpin per unit for each product? Notei Round your answers to 2 decimal places. Complete this question by entering your answers in the tabs below. What is the contribution margin per direct labor hour for each product? Note: Round your intermediate calculations to 2 decimal places. Complete this question by entering your answers in the tabs below. Assume there is unlimited demand for each product. Which product should the company focus on producing