Question 3 (1 point) A stock has a required return of 29.00%, the risk-free rate is 10.80%, and the market risk premium is 14.80%. a) What is the stock's beta? b) If the market risk premium changes to 5.50%, what would happen to the stock's required rate of return? Assume that the risk-free rate and the beta remain unchanged. O a)4.550; b)-13.315% a)1.230; b)4.282% O a)1.230; b)17.564%