If a bee sting introduces venom into a person, and they develop systemic vasodilation, bronchoconstriction, and increased vascular permeability, which process explains this reaction?

💡 Explanation

Bee sting venom can trigger an allergic reaction through IgE-mediated mast cell degranulation. The IgE antibodies, pre-sensitized to venom antigens, bind to mast cells, and upon encountering the allergen, cause the release of histamine and other mediators that lead to vasodilation, bronchoconstriction and increased vascular permeability; therefore, C is correct, rather than direct lysis or T-cell activation, because this specific reaction is a classic type I hypersensitivity.

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