Zildjian Corporation manufactures a single product with the following unit costs for 1,25o units: Direct materials Direct labor Factory overhead (30% variable) Selling expenses (50% variable) Administrative expenses (10% variable) Total per unit $2,300 960 1,800 900 $6,800 Recently, a company approached Zildjian Corporation about buying 100 units for $5,100 each. Currently, the models are sold to dealers for $7,900. Zildjian Corporation's capacity is sufficient to produce the extra 100 units. No additional selling expenses would be incurred on the special order. How much will income change if the special order is accepted? Oa. decrease by $180,000 b. no change O c. increase by $121,600 Od. increase by $76,600