ACO.): Pick the closest interest rate. Investment required in equipment$37,500 Annual cash inflows $9,000 Salvage value of equipment $0 Life of the investment 15 years Required rate of return 10 % The company uses straight-line depreciation on all equipment. Assume cash flows occur uniformly throughout a year except for the initial investment. Click here to view Exhibit 13B-1 and Exhibit 13B-2, to determine the appropriate discount factor(s) using the tables provided. The internal rate of return of the investment is closest to: Select one: a. 25% b. 27% c. 29% d. 21% e. 23%