25. The best control over the work on which internal auditor's opinions are based is A. Supervisory review of all engagement work. B. Preparation of time budgets for internal auditing activities. C. Preparation of engagement working papers. D. Staffing of internal audit activities. 26. Which of the following would an internal auditor not be allowed to do: a. b. c. Provide confidential financial information to the audit committee. Conduct interviews as part of a fraud examination. Conduct compliance tests as part of the overall due diligence process in a decision to another entity Determine the impaired value of an asset. d. 27. The purpose of including a time budget in an engagement work program is to A. Provide an objective means of evaluating the internal auditor's competence. B. Assure timely completion of the engagement. C. Provide a means of controlling and evaluating the progress of the engagement. D. Restrict the scope of the engagement