The correct answer is C. Senior/top management. The asset management policy is a leadership document, so ownership must sit with senior or top management, not merely with the asset management department. The policy defines the organization's intent, direction, and principles for asset management. It must align with organizational objectives and provide the framework for asset management objectives, decision-making, governance, and lifecycle value realization. The asset management department may maintain, coordinate, or facilitate the system, but it should not ''own'' the policy in isolation because asset management affects operations, maintenance, engineering, finance, procurement, risk, and executive decision-making. Human Resources is also incorrect because HR may support competencies and roles, but it does not own the asset management policy. ISO 55001-style guidance places clear responsibility on top management to demonstrate leadership and commitment, including ensuring that the asset management policy, SAMP, and objectives are established and compatible with organizational objectives. That makes senior/top management the correct CRL-aligned answer.