A global project has stakeholders with differing interpretations of requirements and the project manager is worried about scope creep. Which action should control the scope?

The correct answer is to accept only changes approved by the Change Control Board (CCB) prior to implementation. This is a core principle of integrated change control and is crucial for managing scope creep. The CCB reviews all proposed changes, assesses their impact on scope, schedule, cost, and quality, and then approves or rejects them, ensuring only necessary and justified changes are incorporated. The other options are less effective or incorrect. Ensuring all stakeholders agree that "no changes will be needed" is unrealistic; projects are dynamic. Accepting only changes that "add value" is subjective and lacks a formal process. Rejecting all changes that increase budget or extend the schedule is too rigid and may prevent necessary adjustments.