What could trigger a DTS audit?

The identified correct reason for triggering a DTS audit is centered around unusual expenses, patterns of inconsistent reporting, or random selection. This is important because audits are typically designed to enforce accountability and integrity within the travel system. Unusual expenses can raise red flags, prompting further investigation. Similarly, if there are patterns of inconsistent reporting, such as fluctuating travel costs or frequent discrepancies, this may indicate potential misuse or misunderstanding of travel policies.

Random selection is also a common practice in audits, acting as a preventive measure to ensure compliance among users. Thus, the combination of these factors serves to enhance oversight and ensure that travelers adhere to established guidelines. The other choices focus on specific actions that might lead to scrutiny but do not encompass the broader criteria used for triggering audits in the DTS context.