What must a consultant architect prepare for the contractor?

The correct choice, which emphasizes that a consultant architect must prepare all documents necessary for contract execution, reflects the comprehensive nature of the architect's role in the construction process. This encompasses a wide range of critical documents, including but not limited to detailed drawings, specifications, quality assurance documents, and contractual agreements.

These documents are essential for ensuring that the contractor fully understands the project requirements and can proceed with the work based on a clear and legally binding set of guidelines. The architect's involvement ensures that the contractor has everything needed to execute the project effectively, maintain quality standards, and adhere to the design intent. Providing all necessary documentation is fundamental to facilitating smooth communication and minimizing the risk of disputes during the construction phase.

In contrast, the focus of the other options is limited. Work schedules alone would not encompass all the necessary documentation for contract execution. Final reports pertain to the end of the project, and design modifications are a part of ongoing project adjustments rather than the entire body of documentation needed upfront for the contractor. Hence, the all-encompassing nature of option B aligns with the responsibilities of a consultant architect throughout the entire construction process.