QUESTION 13 "Treasury bills are paying a 4.5% rate of return. A risk-averse investor with a risk aversion of A = 1.5 should invest entirely in a risky portfolio with a standard deviation of 7% only if the risky portfolio's expected return is at least Note: Express your answers in strictly numerical terms. For example, if the answer is 5%, write 0.05" QUESTION 14 "Consider a Treasury bill with a rate of return of 2% and the following risky securities: Security A: E(T) =0.12; variance = 0.05; Security B: E(r) = 0.005; variance = 0.0225; Security C: E() = 0.09; variance = 0.02; Security D: E(r) = 0.2; variance = 0.25. The investor must develop a complete portfolio by combining the risk-free asset with one of the securities mentioned above. The security the investor should choose as part of her complete portfolio to achieve the best CAL would be A B 0000