4. The Equity fund sells Class A shares with a front end load of 4% and class B shares With 126-1 fees of .5% annually (at end of year) as well as backend load fees that start at 5% and Fall By 1% for each year the investor holds the portfolio (until the fifth year). Assume the rate of return on the fund portfolio net of operating expenses is 10% annually. What is the value of a $10,000 investment in class A and Class B shares if the shares are sold after (a) 1 year, (b) 4 years, (c) 10 years? Which fee structure provides higher net proceeds at the end of each investment horizon