3. A company distributes a product that sells for $80 per unit. Variable expenses are $40 per unit, and fixed expenses total $200,000 annually. Assume that the company sold 10,000 units last year. The president wants to increase the sales commission by S8 per unit. She th?nks that this move, combined with some increase in advertising, would double annual unit sales. By how much could advertising be increased with profits remaining unchanged? (Choose the closest answer.) A. $240,000 B. $200,000 C. $560,000 D. $280,000 E. $440,000