Which of the following is a threat to the internal audit function’s organizational independence?

Restrictions on access to organizational information directly threaten the internal audit function’s ability to fulfill its mandate and therefore affect organizational independence and authority. Internal audit requires unrestricted access to relevant records, personnel, systems, and property to determine engagement scope and perform appropriate procedures without undue interference. Cognitive bias and familiarity primarily threaten an individual auditor’s objectivity rather than the organizational independence of the internal audit function. Providing advisory recommendations before subsequently conducting assurance work may create an objectivity concern depending on the responsibilities assumed, but advisory involvement alone does not automatically impair organizational independence. The Internal Audit Fundamentals material specifically recognizes limitations on access and scope as threats to the effectiveness and authority of internal audit. Consequently, organization-wide restrictions on access constitute the clearest threat to the function’s organizational independence among the choices.