Which of the following investments is clearly preferred to the others for an investor who is not holding a well-diversified portfolio? STDEV Investment Mean A 185 20% B 20% 20% C. 20% 2296 Investment A Investment B Investment Cannot be determined without information regarding the risk-free rate of return. Robotics stock's required return is 12.6%, the risk-free rate of return is 3%, and the market risk premium is 89. Robotics beta is The risk-free rate of interest is 4% and the market return is 9%, Howard Corporation has a beta of 1.75, and the required return on Howard Corporation stock is