"One-year Treasury bilk currently earn 4,35 , and you expect that one year from now, 1 -year Treasury bill rates will increase to 5.01 to and that two years from now one-yea Treasury bill rates will increase to 5,91%; If the unblased expectations theory is correct, what should the current rate be on a three-year Treasury security? 5.35%6.26%6.11%4.94%5.38%5.91%5.00%.