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: Unknown
[{'content': 'Percentage of Blasts in AML \nSelect and explain. \nA. 8%, B. 15%, C. 20%, D. 25%', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans.(c) 20%Ref: Nelson 18th ed. ch. 495* The characteristic feature of AML is that >20% of bone marrow cells on bone marrow aspiration or biopsy touch preparations constitute a fairly homogeneous population of blast cells, with features similar to those that characterize early differentiation states of the myeloid-monocyte-megakaryocyte series of blood cells. The most common classification of the subtypes of AML is the FAB system.French-American-British (FAB) Classification of Acute Myelogenous LeukemiaSUBTYPECOMMON NAMEMlAcute myeloblastic leukemia without maturationM2Acute myeloblastic leukemia with maturationM3Acute promyeloblastic leukemiaM4Acute myelomonocytic leukemiaM5Acute monocytic leukemiaM6ErythroleukemiaM7Acute megakaryocytic leukemia', 'role': 'assistant'}]