Final answer:
The parol-evidence rule refers to a rule that bars the introduction of most evidence regarding the oral negotiations of the parties that occurred prior to the execution of a written contract. The correct option is A.
Step-by-step explanation:
The parol-evidence rule refers to (A) a rule that bars the introduction of most evidence regarding the oral negotiations of the parties that occurred prior to the execution of a written contract.
This means that when parties have entered into a written contract, they cannot introduce oral evidence of what they discussed or agreed upon before signing the contract, unless there are exceptional circumstances.
The rule aims to ensure that written contracts are the final expression of the parties' intentions and to prevent disputes and uncertainty about the terms of the contract. The correct option is A.