3) A debenture bond is collateralized by the firm's assets. 4) A "sweetener" that is often attached to preferred stock or bonds which permits the bondholder to convert her position into common stock of the same firm is described as a: option. 5) A representative of the rights of bondholders who enforces the terms of the indenture is called the bond: 6) A bond given a low credit rating below investment grade, considered riskier with a higher chance of default is called a