Which practice is mentioned as a kill step to eliminate parasites in fish?

• A. Cooking
• B. Boiling water
• C. Freezing (kill step to eliminate parasites in fish)
• D. Thawing at room temperature

Answer: (C)

Parasites in fish can be destroyed by freezing when done to the recommended temperatures and times, which is a standard step for fish that will be eaten raw or undercooked. This makes freezing the recognized method to eliminate parasites in such fish, aligning with safety guidelines for seafood. Cooking would also kill parasites, but the item specifically identifies freezing as the kill step used to destroy parasites in fish. Thawing at room temperature does not kill parasites and can allow bacterial growth, so it is not a kill step. This is why the option describing freezing as the kill step is the best choice.