Today, interest rates on 1-year T-bonds yield 1.7%, interest

Today, interest rates on 1-year T-bonds yield 1.7%, interest rates on 2-year T-bonds yield 2.15%, and interest rates on 3-year T-bonds yield 3.8%.a. If the pure expectations theory is correct, what is the yield on 1-year T-bonds one year from now?b. If the pure expectations theory is correct, what is the yield on 2-year T-bonds one year from now?c. If the pure expectations theory is correct, what is the yield on 1-year T-bonds two years from now?