What method can be used for evaluating multi-pathway exposure?

The correct choice, integrated exposure assessment approaches, is essential for evaluating multi-pathway exposure because it provides a comprehensive framework to assess how individuals or populations can be exposed to a particular substance or hazard through various pathways simultaneously. These pathways can include inhalation, ingestion, and dermal contact, and an integrated approach allows for the consideration of all these routes collectively, rather than in isolation.

By utilizing integrated exposure assessments, researchers can account for the cumulative effects of exposure from different sources and mediums, providing a more accurate analysis of potential health risks. This approach can involve a combination of modeling, field measurements, and data analysis to paint a complete picture of risk based on real-world conditions.

The other options, such as single-pathway analysis, focus on just one route of exposure at a time, which limits the understanding of overall risk. Randomized testing methods and subjective risk assessments do not inherently offer a structured way to evaluate multiple exposure pathways simultaneously, making them less suitable for understanding the complexities involved in multi-pathway exposure scenarios.