The correct answer is B. high maturity bonds.
Reinvestment risk is the risk that the interest earned on a bond will not be reinvested at the same rate as the original bond. This risk is higher for bonds with longer maturities because there is a greater chance that interest rates will change over the life of the bond. If interest rates go up, the investor will not be able to reinvest the interest at the same rate and will therefore earn less money. If interest rates go down, the investor will be able to reinvest the interest at a higher rate and will therefore earn more money. However, the risk of reinvestment is always present, regardless of the direction of interest rates.
Short maturity bonds have a lower reinvestment risk because they have a shorter time to maturity. This means that there is less time for interest rates to change and affect the investor’s return. High premium bonds and high inflated bonds also have a lower reinvestment risk because they are typically issued with a higher coupon rate. This higher coupon rate provides the investor with a higher yield, which helps to offset the risk of reinvestment.
In conclusion, the reinvestment risk is higher on high maturity bonds because there is a greater chance that interest rates will change over the life of the bond. This risk is always present, regardless of the direction of interest rates.