According to IIA guidance, which of the following best describes an adequate management (audit) trail...

Comprehensive and Detailed In-Depth Explanation:

A management (audit) trail ensures financial transparency by tracking who initiated, approved, and processed transactions within the general ledger (GL).

Option A (Report on data outside system parameters) is a validity control, not an audit trail.

Option C (Comparison of results with input) ensures accuracy but is not a comprehensive audit trail.

Option D (Error-free processing confirmation) does not track user activity.

Since audit trails require tracking transactions by time and individual, Option B is correct.