Answer:
Promissory Note.
Explanation:
A signed document containing a written promise to pay a stated sum to a specified person/institution or the bearer at a specified date is known as promissory note.
A promissory agreement can be defined as an evidence of a debt and as such involves the use of a legal financial tool such as a promissory note as a written promise to declare that a party (borrower) would pay another (lender) at a specific period of time.
