Veggie Bowl Café signs an instrument in favor of Whole Wheat Company that states it is "subject to a certain agreement between buyer and seller." This instrument is

A) negotiable.
B) nonnegotiable, because it is made subject to a separate agreement.
C) nonnegotiable, because it refers to a separate agreement.
D) nonnegotiable, because the buyer and seller are not the same parties.

Nonnegotiable

Refers to a financial instrument that cannot be transferred or endorsed to another party.

Separate Agreement

A distinct contract or arrangement that is made independently from any other agreements or contracts.

Negotiable

Refers to a written and signed promise or order to pay a specific sum of money that can be transferred from one holder to another with the ownership of the document constituting ownership of the value.