The following situations involve the provision of non-audit services: 1. Providing bookkeeping services to a public company. The services were preapproved by the audit committee of the company. 2. Providing internal audit services to a public company that is not an audit client. 3. Implementing a financial information system designed by management for a private company. 4. Recommending a tax shelter to a client that is publicly held. The services were preapproved by the audit committee. 5. Providing internal audit services to a public company client with the preapproval of the audit committee. 6. Providing bookkeeping services to an audit client that is a private company. Required: Indicate whether providing the service is a violation of AICPA rules or SEC rules including Sarbanes-Oxley requirements on independence. Explain your answer as necessary