Teatro restoration, inc., begins renovating an old theater for urban edge productions, but after three months teatro demands an extra $250,000. urban edge agrees to pay. refer to fact pattern 8-1. if teatro says it is asking for the extra $250,000 because it has encountered extraordinary unforeseen difficulties that will add considerable cost to the project, the agreement isa. unenforceable as an illusory promise.
b. enforceable because of unforeseen difficulties.
c. unenforceable due to the preexisting duty rule.
d. enforceable as the consideration is past.