Biology

Answer: B) Antibodies (IgE)

Explanation:
In allergic reactions, IgE antibodies play a key role.
These antibodies bind to allergens (like peanut proteins) and cause mast cells to release histamine and other inflammatory chemicals, leading to allergic symptoms.
This is a part of the adaptive immune response, particularly the humoral immunity mediated by B cells.

A) Cytotoxic T cells are involved in cell-me...