Stocks A and B have the following historical returns: a. Calculate the average rate of return for each stock during the period 2016 through 2020 . Round your answers to two decimal places. Stock A: % Stock B: % answers to two decimal places. Negative values should be indicated by a minus sign. What would the average return on the portfolio have been during this period? Round your answer to two decimal places. % c. Calculate the standard deviation of returns for each stock and for the portfollo. Round your answers to two decimal places. d. Calculate the coefficlent of variation for each stock and for the portfolio. Round your answers to two decimal places. e. Assuming you are a risk-averse Investor, would you prefer to hold Stock As Stock B, or the portfollo