Global Epic stock currently plots on the security market line and has a beta of 0.8. Which one of the following will increase that stock's rate of return without affecting the risk level of the stock, all else constant? 1) Decrease in the market rate of return 2) Overpricing of the stock in the marketplace 3 Increase in the market risk premium 4) An decrease in the risk-free rate 5) Decrease in the security's beta