Answer:
The correct answer is letter "D": pays the bondholder the face value at maturity.
Step-by-step explanation:
Bonds that are issued for an amount lower than their face value are called discount bonds. They are an indicator that the company may not be able to take care of its liabilities. Though, they can also be bonds trading at a lower price than their face value in the secondary market.
At the maturity date, discount bonds pay the holder the face value allowing the investor to profit.