A mutual fund sells Class A shares with a front-end load of 6% and Class B shares with 12b-1 fees of 1% as well as back-end load fees that starts at 6% and fall by 1% for each holding year. Assume that the fund return net of operating costs is 11% annually. What will be the value of a $10,000 investment in Class A and B if the shares are sold after (a) 1 year; (b) 4 years, or (c) 10 years? Which fee structure provide higher net proceeds ?