Inhalation of allergenic pollen in a susceptible person causes the induction of what primary event triggering an allergy reaction?

Inhalation of allergenic pollen in a susceptible person causes the induction of what primary event triggering an allergy reaction? 



a. crosslinking of IgE sensitized mast cells
b. immediate anaphylaxis
c. binding to sensitized T cytotoxic cells
d. increased cAMP levels
e. immediate leukotriene release


Answer: crosslinking of IgE sensitized mast cells


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