You purchased 74 shares of Z stock in January 2022 for $40 per share. Each year you received a cash dividend of $0.75 per share. In December of 2026 , you sold 74 shares of Z for $60 per share. Brokerage fees amounted to 3.0% of the purchase price and 3.0% of the sales proceeds. Use this information to answer the next 5 questions. 18. If inflation averaged 4% per year over the investment period, the average annual after-tax real rate of return would be? (use your answer from the previous question) 4.31% 3.44% 2.50% 3.57%