The correct answer is D. Mutual Fund.
A negotiable instrument is a document that can be freely transferred from one party to another. It is a written promise to pay a certain amount of money to the bearer of the instrument. Negotiable instruments include checks, drafts, promissory notes, and bills of exchange.
A check is a written order to a bank to pay a certain amount of money to the person named on the check. A draft is a written order from one person to another to pay a certain amount of money to a third person. A promissory note is a written promise to pay a certain amount of money to another person. A bill of exchange is a written order from one person to another to pay a certain amount of money to a third person.
A mutual fund is a type of investment fund that pools money from many investors and invests it in a variety of securities. Mutual funds are not negotiable instruments because they are not transferable.