8-16 Three mutually exclusive alternatives are being considered. Initial investment $50,000 $22,000 $15,000 Annual net income 5,093 2,077 1,643 Rate of return 8% 7% 9% Each alternative has a 20-year useful life with no salvage value. (a) Construct a choice table for interest rates from 0% to 100%. (b) If the minimum attractive rate of return is 7%, which alternative should be selected