Which of the Following Is Necessary in Order to Establish

Which of the following is necessary in order to establish that a mutual mistake involving a basic assumption about the subject matter of a contract was made?

A) That the mistake involved the existence, quality, or quantity of the items to be exchanged.
B) That the mistake involved whether a party could profit from the contract.
C) That the mistake involved whether a party could profit from the contract or whether a party misunderstood the time constraints involved in regard to the contract.
D) That the mistake involved the identity of parties to the contract or whether a party misunderstood the time constraints involved in regard to the contract.
E) That the mistake involved a misunderstanding of law as to whether or not the UCC applied.