Internal auditors are the ones who are most likely to be familiar with the various ERP systems used by the organisation. Hence, Option C is correct.
Internal auditors look over and evaluate firm files and financial information. They pinpoint problems like data inaccuracies, dangers, and compliance worries. They examine all the documents covered by their audit and look into any issues they uncover.
An independent internal auditor is a member of the accounting profession who evaluates the effectiveness of an organisation's internal control framework. The typical internal audit position adheres to a standard 40-hour work week.
An internal auditor's workload could expand though if they are getting ready for inspections or sizable external audits. Internal auditors might also be required to work longer hours during certain times.
Therefore, Option C is correct.
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The complete question has been attached in text form:
Who is most likely to have a working knowledge of the various ERP systems that are in use in the company?
A. Chief executive officer
B. External auditor
C. Internal auditor
D. IT staff