Which of the following statements is most correct?

Select one:

a. Putable bond allows bondholder to buy bonds from the company at a certain price at maturity.

b. Warrants are options that permit the issuer to buy back bonds at a stated price.

c. A convertible bond gives the issuer the right to exchange bonds for common stock.

d. Income bonds pay interest only if the interest is earned.

e. A callable bond gives the bondholder the right to sell the bonds back to the issuer under specified terms prior to the normal maturity date.