Consolidated Company makes cardboard boxes. During the most recent accounting period, Consolidated paid $60,000 for raw materials, $48,000 for labor, and $52,000 for overhead costs that were incurred to make boxes. Consolidated started and completed 400,000 boxes. GS&A expenses amounted to $40,000. Consolidated desires to earn a gross margin that is equal to 40% of product cost. Based on this information the selling price per box is: a. $0.40. b. $0.56. c. $0.50. d. $0.70