Which of the following is likely to define the purpose, authority, and responsibility of the internal audit activity?
1. The internal audit activity vision statement.
2. The internal audit charter.
3. The internal audit policy statement.
4. The internal audit universe.
The internal audit activity is primarily defined by the internal audit charter, which outlines the purpose, authority, and responsibility of the internal audit function. The internal audit policy statement can supplement this by providing additional policies and guidelines for the internal audit activities. The internal audit vision statement and the internal audit universe typically do not serve to define these foundational aspects. Therefore, the correct answer is options 2 and 3 only.
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