Nine-year Treasury bonds are yielding 4.8% per year and a nine-year corporate bond is yielding 6.3% per year. If the corporate bond's yield includes a 0.8% per year default premium and a 1.7% per year inflation premium, what is its liquidity premium? 1) 0.6% 2) 0.9% 3) 0.5% 4) 0.8% 5) 0.7%