Final answer:
Eight major foods or food groups account for 90% of food allergens, which are milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, and soybeans.
Step-by-step explanation:
The question is related to food allergens and how many major foods or food groups are responsible for the majority of allergic reactions. The correct answer is that there are eight major foods or food groups that account for 90% of food allergens. These commonly include milk, eggs, fish, shellfish, tree nuts, peanuts, wheat, and soybeans.