You are evaluating two different silicon wafer milling machines. The Techron I costs $270,000, has a three-year life, and has pretax operating costs of $69,000 per year. The Techron II costs $475,000, has a five-year life, and has pretax operating costs of $36,000 per year. For both milling machines, use straight-line depreciation to zero over the project's life and assume ; salvage value of zero. When one wears out, it WILL NOT be replaced. If your tax rate is 35 percent and your discount rate is 10 percent, which do you prefer? Why