In 2019, Carrolton sold 3,000 units at $500 each. Variable expenses were $250 per unit, and fixed expenses were $400,000. The same selling price is expected for 2020 . Carrolton is tentatively planning to invest in equipment that would increase fixed costs by 20%, while decleasing variable costs per unit by 20%. What is Carrolton's break-even point in units for 2020? a, 2,000 b. 1,600 c. 3,200 d. 1,200