Sorin, Inc., a company that produces and sells a single product, has provided its contribution format income statement for January. Sales (4,200 units) Variable expenses Contribution margin Fixed expenses Net operating income $ 155,400 100,800 54,600 42,400 $ 12,200 If the company sells 4,600 units, its total contribution margin should be closest to: Select one: O a $59,800 b. $54,600 Oc. $13,362 d. $69,400