Audit documentation is categorized into different files. The following item would be excluded from the audit administrative working papers: copies of the partnership agreements budget of resources - staff time the engagement letter planning memo QUESTION 9 Wally Smith prepared a tax return for a client and found that the client had skimmed cash receipts and did not discic all income on the return, Wally signed off on the return anyway. Which rule has been violated? Accounting principles Confidential client information Objectivity and independence Integrity