Assume that to comply with the Air Quality Control Act of 1989, a company must install three smoke stack scrubber units to its ventilation stacks at an installed cost of $335,000 per unit. An estimated $100,000 per unit in fines could be saved each year over the five-year life of the ventilation stacks. The cost of capital is 14% for the firm. What is the NPV for this project? a) $13,895 b) -$14,853 c) -$7,629 d) -$11,692