The company is considering three different investments involving depreciable assets. The following data relate to these investments: expected life of proposal (years) investment 1 initial cash outlay A$165,000 A$220,000 A$320,000 salvage value A$2,000 A$1,500 A$3,000 cash inflow before tax A$41,000 A$60,000 A$75,000 The income tax rate is 40%. Management requires a minimum discount rate of 8% Rank these proposals using the following selection techniques: a. Payback period b. Unadjusted rate of return c. Net present value method