It costs $15,000 for an automated machine to produce a product with a $0.50 per-unit cost. Meanwhile, the manual method costs $2000 and $2.50 labor per unit to manufacture the same product. With an annual production rate of 6,000 units, how long will it take to reach the break-even point? Show your calculation. a. 1.08 yr b. 1.42 yr c. 2.01 yr d. never