During the year just ended, Anna Schultz's portfolio, which has a beta of 0.99, earned a return of 8.6%. The risk-free rate is currently 3.9%, and the return on the market portfolio during the year just ended was 9.1%. a. Calculate Treynor's measure for Anna's portfolio for the year just ended. b. Compare the performance of Anna's portfolio found in part a to that of Stacey Quant's portfolio, which has a Treynor's measure of 1.29%. Which portfolio performed better? Explain. c. Calculate Treynor's measure for the market portfolio for the year just ended. d. Use your findings in parts a and c to discuss the performance of Anna's portfolio relative to the market during the year just ended. a. The Treynor's measure for Anna's portfolio is \%. (Round to two decimal places.)