The correct option is
B Allergy
Allergic rhinitis, also known as hay fever is a type of allergic disease which leads to inflammation in the nose which occurs when the immune system hypersensitizes to allergens in the air. Symptoms include a runny or stuffy nose, sneezing, red, itchy, and watery eyes, and swelling around the eyes. Allergic rhinitis is typically triggered by environmental allergens such as pollen, pet hair, dust.
So, the correct answer is 'Allergy'.