Which rule of evidence limits the terms of a writing to those expressed in writing?

• A. Implied warranty
• B. Statute of Frauds
• C. Parol evidence rule
• D. Assignment

Answer: (C)

Parol evidence rule states that once a contract is written, the writing is considered the complete and final expression of the agreement. It limits what can be used to interpret or modify the contract to the terms that appear in the written document, preventing other oral or written statements made before or at the time of signing from changing those terms. This keeps the written contract authoritative.

There are exceptions, such as when terms are ambiguous and need clarification, or to prove issues like fraud, misrepresentation, mistake, or duress. It also applies if the contract isn’t fully integrated, or to evidence of course of performance, course of dealing, or usage of trade that helps explain the written terms.

Other options don't address this principle. Statute of Frauds concerns which contracts must be in writing to be enforceable; Implied warranties are created by law under certain circumstances; Assignment deals with transferring rights.