Which of the Following Was the Result in Mast Long

Which of the following was the result in Mast Long Term Care v. Forest Hills Rest Home, the case in the text in which the plaintiff claimed that the defending rest home breached its agreement to buy from the plaintiff all the drugs needed for its patients that were not commonly stocked at the rest home?

A) That the agreement was not a valid contract because it contained vague purchasing terms.
B) That the agreement was not valid because it was an illusory promise.
C) That the agreement was not valid because it was unliquidated.
D) That the agreement was valid based on promissory estoppels.
E) That the agreement was valid as a requirement contract.