a. Ten years to maturity and the required rate of return goes fram B\% to 9%. 0. Twerity years in maturity and the required rate of return goess fram B\% 609%. c. Ten years to maturity and the required rate of return goes fram B% to 7%. d. Twenty years in maturity and the required rate of return goes fram B\% to 7%. 9. Compare and contrast your answers for parts a through d and comment on your observations