Gene Milton borrowed a sum of $4056 from his rich uncle Ben. After three years, Gene returned $2948 to his uncle. Then, pald $2894 at the end of year five to pay off the loan. The interest rate quoted by the rich uncle was variable. The interest rate for the first three years was 6% compounded yearly and a different rate for years four and five. This interest rate was nearly equal to Select one: O 31.2%/year 36.0%/year O 28.8%/year 19.2%/year 24.0%/year c