Which of the following represents a material adjustment in periodic reports under SOX?

A material adjustment in periodic reports under the Sarbanes-Oxley Act (SOX) pertains to necessary changes in financial statements that could significantly impact investors' understanding of a company's financial position.

Revisions due to accounting errors are a prime example because if an error is identified after financial statements have been issued, correcting that error is crucial to ensure that the financial reports accurately reflect the company’s financial performance and position. This means that the adjustment has the potential to influence the decisions of investors and stakeholders, which aligns with the definition of materiality in financial reporting.

In contrast, internal cash flow changes, results from tax audit findings, and changes in ownership structure, while potentially important, do not inherently require a material adjustment to the financial statements unless they result in an error or misstatement that affects the fair presentation of the financial reports. For instance, cash flow changes are generally part of operational updates and may not directly affect prior accounting periods unless they relate to correcting an error or an event that necessitates restatement. Tax audit findings might impact reported results, but the findings themselves may not require adjustments unless they lead to a re-evaluation of recent revenues or expenses. Changes in ownership structure may likewise have implications for governance or control but don't necessarily impact the