[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 The book, however, is outdated and cannot be appropriately used in the class.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 describes Dylan's role in the transaction?

A) He was the offeror.
B) He was the offeree.
C) He was the assentor.
D) He was the assentee.
E) He was the offeree and the assentee.