Why Does an Allergy to Plant Pollen Cause Inflammation in the Respiratory

Why does an allergy to plant pollen cause inflammation in the respiratory tract and increases in mucus production?

A) The pollen is interacting with the cytotoxic T cells causing them to destroy body cells in the respiratory tract.
B) The pollen,when inhaled,combines with antibodies and stimulates the release of histamine from Mast cells.
C) The pollen enters and infects cells lining the lungs causing bacterial proliferation.
D) Natural Killer cells bind the pollen and stimulate the activation of the clotting response.
E) Pollen binds with interleukin-1 and stimulates T cell division and causes an autoimmune disorder.