Sullens Inc, which produces and sells a single product, has provided its contribution format income statement for July. Sales (8.500 units). Variable expenses Contribution margin Fixed expenses Net operating income S246.500 136,000 110.500 86.000 $ 24.500 3. If the company sells 8,600 units, its total contribution margin should be closest to: A. $113,400 B. S111,800 C. $110,500 D. $24,788 4. If the company sells 8,300 units, its net operating income should be closest to: A. $23,924 B. $21,900 C. $24,500 D. $18,700