The continual improvement model begins by defining the vision to ensure that improvement efforts align with organizational objectives, so option B is correct. Without a clear understanding of the desired direction, teams may improve the wrong things, optimize locally, or invest effort in changes that do not support strategy or stakeholder value. The vision acts as the anchor for later questions such as where the organization is now, where it wants to be, how it will get there, and how progress will be measured. ITIL emphasizes that improvement should not be random or isolated. It should support the wider purpose, priorities, and desired outcomes of the organization.
Current performance metrics and actions matter, but they come after the vision has clarified what success actually means in context.