How mat AXELES! Aalib Ace Aalto de Mos The following is last month's contribution format income statement: Sales (15,000 units) $1,500,000 Variable expenses 900,000 Contribution margin 600,000 Fixed expenses 500,000 Net operating income $100,000 What is the company's margin of safety in dollars? A. $100,000 B. $250,000 C. $600,000 D. $1,500,000 E. None of the above DOL