Adelajdia Ago Co. reported $750,000 in sales (25,000 units) and an operating income of $25,000. At the break-even point, the company's total CM equals $500,000. Based on this information, which of the following statements is true? Question 4 options: a) The company's variable cost per unit is $9. b) The company's CM ratio is 30%. c) The company's break-even point is 25,000 units. d) The company's variable costs are 60% of sales