Which of the Following Is False Regarding the UCC's Signature

Multiple Choice

Which of the following is false regarding the UCC's signature requirement for a negotiable instrument?

A) An "X" will suffice if the party intended that the mark be placed on the instrument and uses that mark to identify himself.
B) A signature may be made by means of a device or machine.
C) A signature may be made manually.
D) The signature of an agent on behalf of the principal binds the principal and satisfies the signature requirement.
E) None of these.