Which one of the following statements is NOT true?

A.The yield to maturity of a bond is the discount rate that makes the present value of the coupon and principal payments equal to the price of the bond.

B.It is the yield that the investor earns if the bond is held to maturity, and all the coupon and principal payments are made as promised.

C.A bond's yield to maturity will not change as interest rates increase or decrease.

D.If the bond is priced at par, its yield to maturity is the same as its coupon rate.