Response to the following problem:
Last year, Twins Company reported $750,000 in sales (25,000 units) and a net operating income of $25,000. At the break-even point, the company's total contribution margin equals $500,000. Based on this information, the company's:
A. contribution margin ratio is 40%.
B. break-even point is 24,000 units.
C. variable expense per unit is $9.
D. variable expenses are 60% of sales.