Abond contract feature that allows the issuer to redeem bonds under specified terms prior to maturity is called a:

- deferred call
- debenture
- protective covenant
- call provision
- sinking fund provision

Call provision

Explanation:

A call provision is a condition attached to redeemable bonds that allows the issuer to buy back the bonds before maturity period of the bonds.The bond redemption price is dependent on the specified redemption period(s).

Additional information

Deferred call is a provision in a callable security that prevents a firm from calling the bond/security before a specified period.

A debenture is a type of debt instrument usually medium to long-term that is used by corporations to acquire capital. These types of capital are not secured by assets or collateral, instead the capital is issued on the basis of the credit worthiness and reputation of the issuer of the debenture.  

Protective covenant is an agreement arrived at between a firm and the bearer of a debenture or a loan, restricting the actions of the firm with the aim of protecting the lender's interest for the duration of the debenture or loan.  

Sinking fund provision is an accounting scenario where by a firm sets up an account where they deposit funds periodically intended to offset costs that will arise due to maturity of issued debentures.

it will get mixed up

explanation:

answer; depth;