Which of the Following Is False Regarding Requirements for an Instrument

Which of the following is false regarding requirements for an instrument to be negotiable?

A) The instrument must be a written document.
B) The instrument must be signed by the creator of the instrument at the end of the instrument.
C) The instrument must have an unconditional promise or order to pay.
D) The amount to be paid in the instrument must be a sum certain in money.
E) All of these are false.