Calculate the required rate of return for Mercury Inc., assuming that investors expect a 3.5 percent rate of inflation in the future. The real risk-free rate is equal to 2.9 percent and the market risk premium is 5 percent. Mercury has a beta of 1.9, and its realized rate of return has averaged 11 percent over the last 5 years. O 15.40% O 14.90% O 13.90% O 15.90% O 14.40% L