Which of the Following Represents Appropriate Evidence of Supervisory Review

Which of the following represents appropriate evidence of supervisory review of engagement workpapers?

A) A supervisor's initials on each workpaper. II. An engagement workpaper review checklist. III. A memorandum specifying the nature, extent, and results of the supervisory review of workpapers. IV. Performance appraisals that assess the quality of workpapers prepared by auditors.
B) II and IV only
C) I, II, and III only
D) I, III, and IV only
E) I, II, III, and IV.