Final answer:
The legal contract that describes the form of the bond, the obligations of the issuer, and the rights of the bondholders is known as a bond's indenture.
Step-by-step explanation:
The legal contract that describes the form of the bond, the obligations of the issuer, and the rights of the bondholders is best described as a bond's indenture.
The indenture serves as a legal agreement between the issuer of the bond (such as a corporation or government) and the bondholders, outlining the terms and conditions of the bond.