Company XYZ produces and sells headphones. The company has total fixed costs of $112,000. Each headphone sells for $35 per unit and has variable costs of $25 per unit. Next year XYZ Company wishes to earn an operating income that equals 10% of fixed costs. How many units must be sold to achieve this target income level? (rounded to the nearest number) Select one: a. 1,867 O b. 11,200 c. 10,080 d. 12,320 e. 2,053 All else being equal, a $10.00 increase in a product's variable expense per unit accompanied by a $10.00 increase in its selling price per unit will: Select one: a. None of the given answers. b. decrease the degree of operating leverage. c. have no effect on the contribution margin ratio. d. have no effect on the break-even volume, e decrease the total contribution margin