Shady Inc. manufactures outdoor umbrellas. The company has the capacity to produce 100,000 units per year, but it currently produces and sells 75,000 units per year. The following information relates to current production: If a special sales order is accepted for 5,800 umbrellas at a price of $38 per unit, and fixed costs increase by $13,000, how would operating income be affected? (NOTE: Assume regular sales are not affected by the special order.) A. Decrease by $16,000 B. Increase by $42,000 C. Increase by $62,400 D. Increase by $16,000