This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'IgE receptors are present on - \nSelect and explain. \nA. Mast cells, B. NK cells, C. B cells, D. Histiocytes', 'role': 'user'}, {'content': 'Answer: A \nExplanation: . Mast cells', 'role': 'assistant'}]