[Book Sale] Yasmeen Offered to Sell Dylan a Used Business

[Book Sale] Yasmeen offered to sell Dylan a used business law book for $50. She told him that he could use it in his upcoming business law class the next semester. However, there was a problem with the book; it was several editions old. Dylan was not aware of that fact, and neither was Yasmeen. When Dylan took the book to class and realized the problem, he went back to Yasmeen requesting a refund. Yasmeen refused to return his money. She claimed that she did not commit fraud because subjectively she thought that the book was correct, and that a binding contract existed. The book, however, is outdated and cannot be appropriately used in the class.
-Which of the following is true regarding Yasmeen's claim that she subjectively believed the book was an appropriate edition and that an enforceable contract, therefore, existed?

A) She is correct because contract law is based upon a subjective theory of contracts.
B) She is correct because her genuinely held belief establishes that she did not commit fraud.
C) She is correct because agreements for the sale of goods are based on a subjective theory.
D) She is incorrect because her subjective belief would not be the basis for a determination of whether the contract would be enforced in this case and also because fraud is not necessary in order to find a breach of contract.
E) She is correct but only if Dylan subjectively believed the same as she did.