If you were to estimate the expected return on the market portfolio, you would need to know or estimate:
A) the beta of the portfolio, the risk-free rate, and the level of the market over the next year.
B) the risk-free rate and beta of the portfolio.
C) the historical risk premium and the risk free rate.
D) the level of the market over the next year, the risk-free rate, and the historical risk premium.