Which Statement Is True

Which statement is true?

A) The carrying amount of the bonds will decrease each year if the bonds were issued at a discount.
B) The carrying amount of the bonds will decrease each year if the bonds were issued at a premium.
C) Total interest expense will increase each year if the bonds are issued at a discount and the straight-line method of amortization is used.
D) Total interest expense will increase each year if the bonds are issued at a premium and the effective interest method of amortization is used.