XYZ Inc. sells a single product for $30 per unit. Variable production costs are $18 per unit. Fixed overhead costs amount $160,000 per month. Variable selling costs are $3 per unit. Fixed selling costs are $20,000 per month. Last month, the company produced 10,000 units and sold 8,000 units. What is the companys breakeven point in sales dollars? a. $120,000 b. $240,000 c. $600,000 d. $40,000