An unsecured bond is referred to as a(n) :

A) indenture.
B) debenture.
C) mortgage bond.
D) subordinated mortgage bond.

Unsecured Bond

A bond not backed by collateral, relying on the issuer's creditworthiness.

Indenture

A formal legal agreement, contract, or document between two parties, especially one detailing the terms and conditions of a bond or debenture.

Debenture

A type of debt instrument that is not secured by physical assets or collateral but is backed only by the general creditworthiness and reputation of the issuer.