Which of the following is listed as a symptom of an allergy?

• A. Swelling of the throat and mouth
• B. Headache
• C. Dizziness
• D. Joint pain

Answer: (A)

Allergic reactions can affect different parts of the body, but swelling of the throat and mouth is a direct sign of airway involvement and can rapidly lead to life-threatening breathing problems. This makes it the correct choice because it specifically points to a dangerous allergic response, unlike the other options. Headache and dizziness can occur for many reasons and are not specific to allergies, and joint pain isn’t a typical acute allergy symptom. If throat or mouth swelling occurs, seek urgent medical help.