Which of the following is not likely to be the reason for auditors to use an expert system to assist them to evaluate how well a system safeguards assets or maintains data integrity?

a. The quality of the advice it provides is robust across a wide range of different types of internal control system

b. It allows them to ask questions about how it reached a particular conclusion on the reliability of an internal control system

c. It provides them with insights into how the various internal control strengths and weaknesses compound and compensate

d. It provides them with a reasonableness check when they are evaluating the quality of their own judgments