Which of the following best describes a prime contract?

A prime contract is best defined as a contract established between the owner of a project and a single entity, which can be a contractor or a design-builder responsible for the overall execution of the project. This contract typically outlines the primary responsibilities, obligations, and scope of work that the prime contractor must adhere to in order to meet the project requirements.

In this context, the prime contractor manages the project, coordinates with subcontractors, and ensures that all components of the construction are completed according to the agreed-upon specifications, budget, and schedule. This relationship is crucial as it establishes a direct line of accountability between the owner and the contractor.

Other options describe different types of contractual relationships but do not capture the essence of a prime contract. For example, a contract involving multiple subcontractors would not be a prime contract, as the prime contract is created between the owner and a single contractor. Similarly, while contracts outlining the architect's scope of work or allowing changes during construction relate to contractual agreements, they do not define the prime contract itself.