Answer:
Purchase 1st bond
Step-by-step explanation:
Given data:
1st bond : zero coupon , 30 years to maturity,
2nd bond : 10% coupon bond , 10 year to maturity
Assuming other characteristics are the same.
when the interest rate change the Bond that is mostly likely to earn a higher return is the 1st bond, because the duration of the bond is higher than the duration of the 2nd bond, Also the Duration to maturity of bonds decreases with increase in coupon.