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What is the purpose of shellfish identification tags?

  1. To enhance food flavor

  2. To trace products back to their source

  3. To indicate freshness

  4. To provide nutritional information

The correct answer is: To trace products back to their source

The primary purpose of shellfish identification tags is to trace products back to their source. These tags are vital for food safety and public health because they allow regulatory agencies to track shellfish from the point of harvest to the consumer. This traceability is crucial in the event of a foodborne illness outbreak, as it enables authorities to identify and address the source of contamination quickly. While other options may relate to certain aspects of seafood quality, such as freshness or flavor, these factors do not serve the fundamental role that identification tags have in ensuring the safety and traceability of shellfish products.