On Behalf of Platinum Assets,Inc

Multiple Choice

On behalf of Platinum Assets,Inc. ,Quigley signs an instrument promising to pay $5,000 in gold to Resources Exchange,Inc. ,on September 10.This in?strument is

A) negotiable.
B) nonnegotiable,because gold is not "a medium of exchange author?ized or adopted by a domestic or foreign government as part of its currency."
C) nonnegotiable,because it does not recite any consideration.
D) nonnegotiable,because it is for an amount of $500 or more.