Which three allergens come from animal sources?

The correct answer focuses on allergens that originate from animal sources, which include milk, seafood, and eggs.

Milk is a common allergen derived from mammals, particularly cows, and it can cause allergic reactions in some individuals. Seafood encompasses a wide range of aquatic animals, including fish and shellfish, both of which are known allergens. Eggs, specifically those from birds like chickens, are also a well-recognized source of allergies.

Other choices include options like meat and cheese; however, cheese is a dairy product made from milk and is included in options involving milk rather than being a standalone allergen source. Nuts, while significant allergens, are derived from plants, not animals, thus eliminating choices that include them as appropriate to this animal-sourced question.

Overall, milk, seafood, and eggs are the three allergens from animal sources, making the chosen answer accurate in the context of food safety.