While preparing the audit plan for an automobile manufacturing company, the chief audit executive (CAE) noted that the company's engineering department received a high risk ranking. However, the internal audit activity is understaffed, and current staff do not possess the necessary skills to adequately assess the effectiveness of the engineering department. What is the most appropriate course of action for the CAE to take?
A. Include the engineering department on the audit plan, use the available internal audit resources to conduct the review, and exclude procedures that cannot be adequately assessed
B. Advise management to accept the assessed risk until the internal auditors are able to review the area adequately
C. Recruit internal auditors with the required competencies and wait until they are employed before including this audit on the internal audit plan
D. Proceed with a review of the engineering department but supplement the internal audit team with nonauditors from an external engineering company who have the required skills to assist