You have received your investment portfolio year-end statement from your broker, Rich Waldman. All investments were purchased at the January prices and held the entire year. a. Calculate how much profit or loss you made for the year, including stock dividends and bond interest. b. What was the total return on investment for your portfolio? c. Using a broker's commission of 3% buying and 3% selling on the stocks and $5 buying and $5 selling per bond, how much profit or loss would you make if you liquidated your entire portfolio at the December 31 prices? d. What would be the return on investment