An investor wants to form a complete portfolio with a standard deviation of 8% per year. The risky asset has an expected return of 12% per year and a standard deviation of 20% per year. If the risk-free interest rate is 3% per year, what is the complete portfolio's expected return? (Hint: find out the weight of risky asset in the complete portfolio, y, first according to the standard deviations) 1) 7.5% 2) 5,8% 3) 6.2% 4) 6.6%