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': 'Major basic proteins are produced by? \nSelect and explain. \nA. Lymphocyte, B. Eosinophil, C. Neutrophil, D. Basophil', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Eosinophils have a granule that contains major basic protein (MBP)\nProteoglycan 2, (natural killer cell activator, eosinophil granule major basic protein), also known as\xa0PRG2, is a protein which in humans is encoded by the PRG2 gene.\nIt is a potent enzyme against helminths. The eosinophil major basic protein also causes the release of\xa0histamine from mast cells and basophils and activates neutrophils and alveolar macrophages.', 'role': 'assistant'}]