What is the type of antibody produced in response to allergens?

Step-by-step solution

The exaggerated response of the immune system to certain antigens present in the environment is called allergy. The substances to which such an immune response is produced are called allergens. The symptoms of allergic reactions include sneezing, watery eyes, running nose and difficulty in breathing. The antibodies produced to allergens are of IgE type. For determining the cause of allergy, the patient is exposed to or injected with very small doses of possible allergens, and the reactions studied.