The following table summarizes risk premiums for stocks in the United States, relative to treasury bills and bonds, for different time periods: Risk Premium for Equity A. What risk premium do you use? ( 1 points) Why? ( 2 points) B. Why is the geometric mean lower than the arithmetic mean for both bonds and bills? (3 points) C. If you had to use a risk premium with the longer periods, what biases will the investor have? (4 points)