What often triggers the formation of hives?

• A. Insect bites
• B. Food allergies
• C. Allergic reactions
• D. Sun exposure

Answer: (C)

The formation of hives, also known as urticaria, is often triggered by allergic reactions. This skin condition occurs when the immune system responds to certain allergens, releasing histamines and other chemicals that lead to the characteristic swelling and redness associated with hives. Allergens can range widely, including pollen, pet dander, medications, and certain foods, and the body's hypersensitivity to these substances causes the immune reaction.

While insect bites, food allergies, and sun exposure can also be potential triggers for hives in specific cases, they fall under the broader category of allergic reactions. Choosing allergic reactions as the trigger encompasses a wider range of potential causes, accurately reflecting how various allergens can prompt the development of hives.