Response to the following questions:
1. Why is the COSO report on internal control systems important under requirements of the Sarbanes-Oxley Act?
2. Under Sarbanes-Oxley, the auditing firm will include which two reports with the audited statements?
3. Under Sarbanes-Oxley, management must include what report with the audited statements?
4. Private companies are not under Sarbanes-Oxley. Why do some private companies follow the law?
If possible, please give examples to better understand your response.