Which of the following is most likely to impair the organizational independence of the internal...

The organizational independence of the internal audit activity is most likely to be impaired if the chief audit executive (CAE) reports administratively to the chief financial officer (CFO). Reporting to the CFO can create a conflict of interest and reduce the perceived and actual independence of the internal audit function, as the CFO has direct involvement in financial management and operations, which are common subjects of audits. This reporting structure could potentially limit the CAE’s ability to report issues impartially and independently.

IIA's International Standards for the Professional Practice of Internal Auditing regarding organizational independence.