Question

A person who has allergies has a compromised immune system because the body’s immune system
attacks its healthy cells.
overreacts to an antigen.
steals nutrients from healthy cells.
responds to mutagens.

Answer 1

overreacts to an antigen.

Explanation: allergies are hypersensitivity reactions where the immune system mounts an excessive response (often IgE‑mediated) to harmless antigens (allergens), causing histamine release and symptoms. This is different from autoimmunity (attacking healthy cells).