Which of the Following Statements Is True

Multiple Choice

Which of the following statements is true?

A) External auditors must consider the internal audit function as part of obtaining an understanding of a company's internal control structure.
B) External auditors must review all work performed by internal auditors.
C) External auditors must investigate the competence and objectivity of internal auditors.
D) External auditors must share responsibility for the work of internal auditors if it is used for evidence for the financial statement audit.