This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunity, Subject name: Pathology
[{'content': 'IgE receptor present on? \nSelect and explain. \nA. Mast cell, B. NK cell, C. B cell, D. T cell', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) Mast cell(Ref: Robbins 9th/pg 200; 8th/pg 198)Mast cells have Fc receptor for IgE; Antigen binding to it results in the activation of mast cells leading to type I hypersensitivity.', 'role': 'assistant'}]