Engineering economics question.

Your company is comparing two machinery investments: A and B. Your company's real Minimum Attractive Rate of Return (MARR) is 5%. Average annual inflation rate is 1%. The properties of these investments are provided in the following table (all dollar values are in constant dollars): B Initial Cost $125,000 Annual Maintenance cost $21,000iyear Annual Sales 4,500 units/year Production unit cost $10/unlt Product unit sale price $40/unit Salvage value after 5 years $80,000 CCA Rate 35% Service life 3 years For both alternatives, answer the following questions considering applicable taxes whenever possible: a] Provide the before-tax cash flow diagrams for both alternatives in current dollars. b] Calculate the NPW of both alternatives taking into account all taxes at a tax rate of 40% (tie, for after-tax cash flow). Half- year rule applies. c] Which alternative is economically better