Geller uses a can of spray paint and writes on the side of a building "I, Geller, promise to pay $1,000 to Betty-Jane on March 1, 2020" and signs it. This promise would be considered:

A) negotiable, only if Betty-Jane took a picture of it

B) negotiable, whether or not Betty-Jane took a picture of it

C) non-negotiable, because it is not reasonably moveable

D) non-negotiable, because Betty-Jane did not see Geller write it