Jane Gorman performed an audit on the Quagmire Corporation and issued an unqualified opinion. Jane performed the audit with due professional care and in accordance with generally accepted auditing standards. Two months after the report was issued, Jane read a news article that the CEO of Quagmire, Johnny Best, had been stealing small amounts of inventory. The amount, however, is immaterial compared to the overall inventory of the corporation. Jane soon receives a call from Quagmire's CFO, Mark Beastly. Mark wants Jane to refund her audit fees. Mark thinks Jane did not properly perform the audit, as she did not discover this fraud. Further, he feels that now Quagmire's financial statements are not fairly stated because of Jane.

Questions:

1. How should Jane respond to this claim?
2. What are the auditor's responsibilities in performing an audit?
3. What are the specific sections of the Professional Code of Conduct that are relevant to this scenario?