1. Carl, a risk averse investor wants to construct a portfolio using both risk free and risky assets. He has gathered the following information about 2 risky assets Y and Z. Which of these 2 assets would he choose to add to his portfolio? Asset Y Expected Return Reward-to-volatility 15% 0.4 20% 0.3 Z O a. Asset Yonly b. Asset Z only c. He is indifferent. He may choose either Asset Y or Asset Z d. He should choose both assets e. He shouldn't choose any of these 2 assets