(39) please help me with this

Stock A has a standard deviation of 10% and Stock B has a standard deviation of 12%. If the expected returns on both stocks are not equal, which one of the following would be helpful to the risk-averse investor in choosing between the least risky stock? The two stocks are in isolation and not in a portfolio. the degree of correlation between Treasury bills and the market. the amount of diversification provided the portfolio by each stock. the impact of each stock has on the portfolio's beta coefficient. O d-the coefficient of variation for each stock. the market risk premium multiplied by each stock's beta coefficient