(Ignore income taxes in this problem.) The management of Melchiori Corporation is considering the purchase of a machine that would cost $310,000, would last for 6 years, and would have no salvage value. The machine would reduce labor and other costs by $116,000 per year. The company requires a minimum pretax return of 16% on all investment projects. The net present value of the proposed project is closest to: Select one: O a. $286,179 O b. $386,000 O c. $117,460 O d. $158,431