Craylon Manufacturing produces a single product that sells for $100. Variable costs per unit equal $25. The company expects total fixed costs to be $60,000 for the next month at the projected sales level of 1,000 units. In an attempt to improve performance, management is considering a number of alternative actions. Each situation is to be evaluated separately. Suppose that management believes that a $10,000 increase in the monthly advertising expense will result in a considerable increase in sales. Sales must increase by ________ to justify this additional expenditure

Select one: a. 123 units b. 143 units c. 134 units d. 243 units