Which of the following statements is most correct? Select one: a. A convertible bond gives the issuer the right to exchange bonds for common stock. b. 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. c. Income bonds pay interest only if the interest is earned. O d. Putable bond allows bondholder to buy bonds from the company at a certain price at maturity. e. Warrants are options that permit the issuer to buy back bonds at a stated price