Suppose two portfolios have the same average return and the same beta, but portfolio A has a higher standard deviation of returns than portfolio B. According to the Sharpe measure, the performance of portfolio A Select one: a. is better than the performance of portfolio B. b. is the same as the performance of portfolio B. C. is poorer than the performance of portfolio B. d. cannot be measured as there are no data on the alpha of the portfolio. e. none of the other options are correct