Suppose that you currently have $250,000 invested in a portfolio with an expected return of 12% and a volatility of 10%. The efficient (tangent) portfolio has an expected return of 17% and a volatility of 12%. The risk-free rate of interest is 5%. You want to maximize your expected return without increasing your risk. Without increasing your volatility beyond its current 10%, the maximum expected return you could earn is closest to: O 12.0% 12.5% 13.4% 15.0% O None of the above