The most effective approach to defining vision and strategy in a complex organization with multiple divisions is collaborative. Involving both senior organizational leaders and the leaders of the specialized divisions ensures that the resulting strategy is both aligned with the overall enterprise goals and grounded in the operational realities and capabilities of each division. This collaborative process fosters a shared understanding, promotes buy-in, and creates a sense of collective ownership, which is critical for successful strategy execution. This approach directly reflects the ITIL 4 guiding principle of 'Collaborate and promote visibility'.

A. This purely top-down approach risks creating a strategy that is disconnected from divisional realities, leading to poor adoption and a lack of commitment from those responsible for implementation.

B. While the governing body provides oversight and approval, defining the strategy in isolation from operational leaders makes it less practical and actionable. Their role is governance, not sole creation.

D. Enterprise architects and consultants are important contributors, but the ultimate ownership and accountability for the vision and strategy must lie with the organization's business and divisional leaders.

1. AXELOS. (2020). ITIL® 4: Digital and IT Strategy. TSO (The Stationery Office).

Section 2.1.2, Creating a vision: "The process of creating a vision should be inclusive and collaborative. It should involve leaders from across the organization, as well as other key stakeholders. This helps to ensure that the vision is relevant, meaningful, and inspiring to everyone in the organization." This directly supports option C.

Section 3.2.1, The role of the leader in a digital organization: This section emphasizes that a key responsibility of leaders is to "foster a culture of collaboration and transparency." Defining strategy in isolation (as suggested by A and B) contradicts this principle.

Section 2.2.3, The strategy cycle: This section describes strategy as an iterative and collaborative activity, stating, "Strategy is not a one-off activity that is performed by a small group of senior managers. It is an ongoing process that involves people from all levels of the organization." This refutes the siloed approaches in options A, B, and D.