(Capital asset pricing model) Using the CAPM, estimate the appropriate required rate of return for the three stocks listed here, given that the risk-free rate is 7 percent and the expected return for the market is 12 percent. O STOCK BETA 0.66 0.93 1.48 (Click on the icon located on the top-right corner of the data table above in order to copy its contents into a spreadsheet.) C a. Using the CAPM, the required rate of return for stock Ais %. (Round to two decimal places.) b. Using the CAPM, the required rate of return for stock Bis %. (Round to two decimal places.) c. Using the CAPM, the required rate of return for stock Cis %. (Round to two decimal places.)