Question 1 (4 points) If the real interest rate is 2.3% per year, the inflation premium is 2.4% per year, the liquidity premium is 0.5% per year, the maturity premium is 0.8% per year, and the default premium is 3.1% per year, what is the annual risk-free interest rate? 1) 4.7% 2) 5.7% 3) 5.2% 4) 3.9% 5) 6.0%