Assume a client of yours has a bullet loan of $15,500 (inclusive of the principal and interest) due 193 days from today. In order to meet the liability, she wishes to invest money today in a combination of risk-free and risky assets, and let it accumulate until the loan maturity. She informed you she would like to maximize the return on the investment while maintaining the daily volatility of returns of her portfolio at or below 1.75%. Combining the risk-free asset with the three tangency portfolios obtained in the last question (Q3) provide your clients with three alternative investment opportunities and how much money she would need to invest in order to meet her liability at its maturity in each of the cases?