Which of the following statements about the internal audit is true?

A. The role of the internal audit function in the public sector is essentially the same as that in the private sector.

B. The internal audit function is part of the organization and therefore does not need to remain independent of management.

C. The internal audit function focuses on internal controls, particularly those over financial reporting.

D. The role of the internal audit function in the public sector is significantly different from that in the private sector.