Mr. Buyer, the plaintiff in the action, was attempting to enforce a contract in which the defendant, Mr. Seller, agreed to sell to the buyer his property, Blackacre, for $100000. Which of the following, by itself, would be sufficient to allow Mr. Seller to get out of the contract?
a There was only a verbal agreement between Mr. Seller and Mr. Buyer.
b Although both parties agreed to this, no money had actually been paid on the contract, not even a deposit or a down payment.
c Mr. Buyer referred to essential terms in a letter sent to Mr. Seller.
d The $10,000 was not enough (i.e., not fair).