Which description is accurate about an audit trail?

• A. A tool for producing invoices.
• B. A method for encrypting data.
• C. A path that traces a transaction from origin to output.
• D. A form for approving payments.

Answer: (C)

An audit trail is a record that shows the sequence of actions a transaction goes through, from its origin to its final output. It captures who did what, when they did it, and what changes were made, so you can trace the entire path and verify exactly how the transaction was processed. This traceability is what lets you reconstruct events, check for accuracy, and spot any unauthorized or erroneous steps. The description that highlights tracing a transaction from origin to output matches this idea because it emphasizes the full, end-to-end path of a transaction and the actions taken along the way.

It's not about producing invoices, encrypting data, or serving as a form for approvals. Those are separate functions—the audit trail supports accountability and integrity by recording the steps taken, not performing the task itself or securing the data. For example, in a billing workflow, the trail would log who created the invoice, who edited it, who approved it, and when each event occurred, allowing you to follow the invoice from creation to payment.