Some more "traditional" assets have option-like features; some of these instruments include

A) callable bonds.
B) convertible bonds.
C) warrants.
D) callable bonds and convertible bonds.
E) All of the options are correct.

Callable Bonds

Callable bonds are bonds that can be redeemed by the issuer prior to their maturity date at a specified call price.

Convertible Bonds

Bonds that can be converted into a predetermined number of the issuing company's shares at certain times during its life, usually at the discretion of the bondholder.

Warrants

Financial derivatives that give the holder the right, but not the obligation, to buy or sell a security, usually equity, at a predetermined price before expiration.