Ralph Is a Professional Football Player

Multiple Choice

Ralph is a professional football player.He signs a valid contract with the Jets.Later,he claims that he was also promised free use of the Jets' private jet,but this was not in the contract.What type of clause in his contract would prevent him from flying away with this claim?

A) A complete agreement clause.
B) A "no additional terms" clause.
C) An integration clause.
D) A severability clause.