Which of the following is NOT a requirement in Canada for something to be found to constitute a negotiable instrument?
◻a. The instrument must be in writing.
◻b. The amount payable must be clearly defined or calculable from viewing the document.
◻c. The date of payment must be ascertainable.
◻d. The instrument must include the words "negotiable on demand" somewhere on the face of the document.
◻e. The promise to pay must be made to a named person or the bearer of the instrument.