What type of contract is a fully executed sales contract with all essential elements?

A fully executed sales contract with all essential elements is classified as a valid contract. A valid contract meets all necessary legal requirements, including mutual consent, lawful object, consideration, and the capability of parties to enter into a contract.

In this context, a fully executed sales contract indicates that all parties have fulfilled their obligations, and it has been completely performed. Therefore, since a valid contract encompasses all essential elements and is legally binding, it accurately describes the nature of the sales contract in question.

Considering the other options: "Complete" refers to the status of having all parts finished rather than legal recognition. "Executed" specifically denotes that the contract has been signed and performed but does not explicitly refer to its legality. "Implied" pertains to contracts that are established through the actions or circumstances of the parties rather than through direct statements. This specificity confirms that the designation of "valid" is the most appropriate for a fully executed sales contract with essential elements.