A corporation is planning to sell its 90-day commercial paper offering a 4.4 percent yield. If the three-month T-bill s annualized rate is 2 percent, the default risk premium is estimated to be 0.6 percent and there is a 0.4 percent tax adjustment, what is the appropriate liquidity premium (assuming no other types of risk)? A:6.4% B:2.4% C:4% D:1.4% E:3.4%