A project has the following estimated data: price = $200 per unit; variable costs = $150 per unit; fixed costs = $200,000; required return = 9%; initial investment = $1,500,000; No salvage value at the end of the project; life = 15 years. What is the degree of operating leverage (DOL) if 6000 units are produced, ignoring taxes? Select one: a. 1 b.2.5 O c. 1.5 O d. 3 e. 2