This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Haematology, Subject name: Pathology
[{'content': '35,000 mm3; prothrombin time-20 sec with a control of 13 sec; paial thromboplastin time-50sec; and Fibrinogen 10mg/dL. Peripheral smear was suggestive of acute myeloblastic leukemia. Which of the following is the most likely? \nSelect and explain. \nA. Myeloblastic leukemia without maturation, B. Myeloblastic leukemia with maturation, C. promyelocytic leukemia, D. Myelomonocytic leukemia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Acute myeloblastic leukemia without maturation is a quickly progressing disease in which too many immature white blood cells (not lymphocytes) are found in the blood and bone marrow. It is classified as "M1" in the FAB classification.', 'role': 'assistant'}]