MrBuyer,the Plaintiff in the Action,was Attempting to Enforce a Contract

Multiple Choice

Mr.Buyer,the plaintiff in the action,was attempting to enforce a contract in which the defendant,Mr.Seller agreed to sell to buyer his property,Blackacre,for $100 000.Which of the following,by itself,would be sufficient to allow Mr.Seller to get out of the contract?

A) The $100 000 was not enough, not fair.
B) At the time of the contract, unknown to Mr. Buyer, Mr. Seller did not understand the quality and nature of this act because of mental incapacity.
C) Mr. Buyer referred to essential terms in a letter sent to Mr. Seller.
D) Although both parties agreed to this, there had not actually been any money paid on the contract, not even a deposit or a down payment.
E) There was only a verbal agreement between Mr. Seller and Mr. Buyer.