The Investments Fund sells Class A shares with a front-end load of 6% and Class B shares with 12b-1 fees of .25% annually as well as back-end load fees that start at 5% and fall by I. 1% for each full year the investor holds the portfolio (until the fifth year). Assume the portfolio rate of return net of operating expenses is 10% annually. a. (5 points) If you sold the fund after 3 years, what would be your return from investing into either share class? Are Class A or Class B shares the better choice in this case? b. (5 points) If you sold the fund after 10years, what would be your return from investing into either share class? Are Class A or Class B shares the better choice in this case