Answer: C. interest expense will not be a constant dollar amount over the life of the bond.
Step-by-step explanation:
When a bond is sold at a discount, the discount will have to be amortized over the life of the bond to ensure that it reaches par at maturity.
As a result, the interest expense will be based on a larger figure every year which would mean that it would have to be larger each time. t will therefore not be a constant dollar amount over the life of the bond.