Dona and Jack enter into a written contract wherein Dona will sell Jack books for $3,000. The contract states that it is their complete and final agreement. However, when Jack receives the books, he is upset to discover certain titles missing. He sues Dona, stating that even though the written contract does not mention the inclusion of certain titles, he and Dona had orally agreed on the choice of books ordered. Jack wants to submit evidence of their oral agreement. Dona argues that such evidence would violate the parol evidence rule.

Who is correct and why?