3. Consider the following information for S\&P and the Indigo Fund: Note: Data are based on a risk-free rate of 3%. a. What is the maximum Sharpe ratio that a manager can achieve by combining the S\&P 500 benchmark portfolio and the Indigo Fund? b. What pairs of weights would be used to achieve the highest Sharpe ratio and optimal amount of active risk through combining the Indigo Fund and benchmark portfolio, respectively