Under the Negotiable Instruments Article of the UCC, which of the following circumstances will prevent a promissory note from being negotiable?
A. An extension clause that allows the maker to elect to extend the time for payment to a date specified in the note.
B. An acceleration clause that allows the holder to move up the maturity date of the note in the event of default.
C. A person having a power of attorney signs the note on behalf of the maker.
D. A clause that allows the maker to satisfy the note by the performance of services or the payment of money.