Sales (6.200 units).... . . . .) $136.400 Variable expenses 80.600 Contribution margin.. 55,800 Fixed expenses . 48.700 Net operating income ...... $ 7.100 Brees Inc., a company that produces and sells a single product, has provided its contribution format income statement for April. If the company sells 5,800 units, its total contribution margin should be closest to O A) $52, 200. O B) $6,642. O C) $47,000. O D) $55,800