At what stage can the owner stop work without any prior notice?

The correct answer highlights the owner's flexibility within the project management framework. Ownership and control are foundational principles in project management, allowing the owner to have significant authority over the project. This means the owner retains the right to halt work at any point without needing to provide prior notification.

This option reflects a key aspect of contract law and project agreements where the project owner can discontinue work if they perceive issues such as unsatisfactory progress, budget concerns, safety violations, or other valid reasons. It empowers the owner to mitigate risks and exercise control over project outcomes, demonstrating how crucial decision-making is embedded in the owner's role.

The other options imply limitations on this authority. For instance, stopping after inspections or only after a written request would suggest a more constrained approach, reducing the owner's ability to respond promptly to issues as they arise. Stopping at project completion would be illogical since, at that stage, the work would already be finalized. Thus, the assertion that the owner can halt work at any time during the project accurately represents their rights and responsibilities.