27. O 28. 0 Porter Plumbing's stock had a required return of 10.00% last year, when the risk-free rate was 5.50% and the market risk premium was 4.75%. Then an increase in investor risk aversion caused the market risk premium to rise by 2%. The risk-free rate and the firm's beta remain unchanged. What is the company's new required rate of return? Select the correct answer. O 29. 30. 0 31. 0 a. 11.89% 32. b. 11.29% 33. C. 11.49% o o 34. d. 11.69% 35. e. 12.09% O 36. o o 37. O 38. O 39. 40 0=Icon Key