Which statement best describes a complete audit trail in electronic records?

• A. A log of all actions that created or modified data.
• B. A log of all actions (who, what, when, why) that created or modified data; ensures accountability, traceability, and data integrity.
• C. A log of only successful logins.
• D. A backup of data every hour.

Answer: (B)

The main concept here is tracking every action on electronic records to create a complete audit trail that shows who did what, when, and why, so records stay accountable, traceable, and data integrity is preserved. The best statement includes all four elements—who, what, when, and why—for each action that creates or modifies data. This completeness makes it possible to verify authorization, understand the sequence of changes, and detect any irregularities, supporting accountability, traceability, and data integrity.

A log of all actions that created or modified data is on the right track but misses who performed the action, when it happened, and the reason behind it. A log that covers only successful logins ignores the actual data changes. A backup of data every hour is about recovery, not recording the actions taken on the data. So the description that explicitly includes who, what, when, and why best matches a complete audit trail.