Final answer:
The correct answer is E. All of these, as milk, eggs, peanuts, and soy are all common childhood allergens that trigger the immune system to react, sometimes causing severe symptoms like anaphylaxis.
Step-by-step explanation:
The most common childhood allergies include the following foods: milk, eggs, peanuts, and soy. Therefore, the correct answer to which foods are most commonly associated with childhood allergies is E. All of these. Food allergies occur when the immune system mistakenly reacts to substances in food as if they were harmful "foreign invaders." Common symptoms of food allergies may include vomiting, diarrhea, itching and swelling of the lips and mouth, and in severe cases, anaphylaxis. Anaphylaxis is a severe reaction that requires immediate medical attention and, if left untreated, can be fatal. Foods like nuts, grains, and shellfish are also well-known allergens that can trigger these immune responses.