Rock the Red Seal Cosmetology Exam 2026 – Style Your Future with Confidence!

An allergy is a response by the immune system to a specific trigger or allergen. While certain exercises, loud sounds, and bright lights may cause a reaction in some people, they are not considered traditional allergens. Allergies are most commonly caused by specific foods, chemicals, or substances that the body has a sensitivity to, causing a variety of symptoms such as sneezing, itching, and swelling. This is why C is the correct answer.