Suppose 1-Year Treasury Bonds Yield 4

Suppose 1-year Treasury bonds yield 4.00% while 2-year T-bonds yield 5.10%.Assuming the pure expectations theory is correct,and thus the maturity risk premium for T-bonds is zero,what is the yield on a 1-year T-bond expected to be one year from now? Round the intermediate calculations to 4 decimal places and final answer to 2 decimal places.

A) 6.21
B) 7.39
C) 7.27
D) 5.47
E) 6.09