Answer: A - Reviewing and approving/rejecting all requests for change/off-specifications within delegated limits set by the Project Board.
Key takeaway: Change will often be dealt with by the Project Board themselves. If it is a large project, though, or a lot of changes are anticipated, a Change Authority may be appointed (possibly the Project Manager and/or somebody from Project Assurance). This will then reduce the workload on the Project Board, who should not have to devote too much of their time to any single project (something which is usually supported by the PRINCE2 principle of Manage by Exception).
