An investor who holds the bond until maturity:

a) needs to worry about interest rate risk because when interest rates change, bond prices change in the opposite direction.

b) does not need to worry about interest rate risk because bond price changes do not affect their return.

c) does not need to worry about interest rate risk because interest rate changes do not affect bond prices.

d) needs to worry about interest rate risk because when interest rates change, the coupon payments that the investor collects will change.