Question 10 refers to the following: Henning Corporation produces and sells two models of hair dryers, Standard and Deluxe. The company has provided the following monthly data relating to these two products. Selling price per unit Variable cost Standard $40 25 Deluxe $55 28 Expected monthly sales in units 600 1,200 Total monthly fixed cost: $13,800 10. The break-even in units for the expected sales mix is (rounded): a. 200 and 400 units, respectively c. 100 and 200 units, respectively b. 400 and 800 units, respectively d. 200 and 300 units, respectively