Which of the following is a primary characteristic of a legally binding contract?

A primary characteristic of a legally binding contract is the intention of the parties to be legally bound. This means that both parties must have a clear understanding and agreement that they are entering into a contract that creates enforceable obligations. This intention is crucial for validating the agreement, as it establishes that both sides recognize the legal implications of their commitments and are willing to uphold them.

The concepts behind the other choices do not define the essence of a legally binding contract. While absence of disputes may indicate a smooth relationship, it is not a prerequisite for a contract's validity. Written documentation can strengthen a contract by providing proof of the terms agreed upon, but a contract can also be legally valid if it is verbal, depending on the nature of the agreement and the jurisdiction. Public notarization is not a requirement for a contract to be legally binding; many contracts are valid without being notarized. Thus, the intention to be bound is the fundamental component that confirms the contractual relationship between the parties involved.