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': 'Non-specific esterase is positive in all the categories of AML except - \nSelect and explain. \nA. M3, B. M4, C. M5, D. M6', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Nonspecific esterase (NSE) is characteristic of M4 (Acute myelomonocytic) and M5 (Acute monocytic) leukemia only. NSE positivity is not a characteristic feature of other subclasses of AML.\n• However, NSE positivity may also be seen in 15-20% of cases of M3 and in some cases of M7.\n• NSE positivity is not a feature of M0, M1, M2 and M6 classes of AML.', 'role': 'assistant'}]