Which of the following scenarios illustrates a violation of the Sarbanes-Oxley Act?

Which of the following scenarios illustrates a violation of the Sarbanes-Oxley Act?

• ​Wong is a member of the audit committee of a public corporation. However, he is an external member and was not employed by the corporation.
• ​Ronan, the CFO of Puvane Inc., is granted an unsecured loan by the company to pay his son's medical bills.
• ​Natalie is assigned to audit a company's financial records. She finds it impossible to arrive at a conclusion and issues a disclaimer of opinion.
• ​Tina, an accountant, fails to detect a fraud in the financial statements of the company she audits.