Which of the following does the CAE need to consider when determining the extent of follow-up required?
I. Significance of the reported observation.
II. Past experience with the manager charged with the corrective action.
III. Degree of effort and cost needed for the corrective action.
IV. The experience of the internal audit staff.
a. I and III.
b. I, II, and III.
c. II, III, and IV.
d. I, II, III, and IV.