An internal auditor wants to determine if employees spend more than their approved daily stipend...

Comprehensive and Detailed Explanation:

The auditor’s goal is to test compliance with a set threshold (daily meal stipend). The most direct technique is compliance verification through data analytics (A), which compares actual expenses against policy limits. Regression analysis (B) is used to identify correlations, not compliance with fixed limits. Gap testing (C) identifies missing values in sequences, not threshold violations. Flowcharts (D) document processes but do not test compliance. Therefore, the best approach is to use compliance analytics to flag all transactions exceeding the approved stipend, providing reliable evidence of policy adherence or violation.