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': 'Chromosomal translocation characteristic in acute promyelocytic leukemia is \nSelect and explain. \nA. + (15;17), B. + (22;9), C. + (21;17), D. + (8;21)', 'role': 'user'}, {'content': 'Answer: A \nExplanation: In AML with the + (15;17) acute promyelocytic Leukemia (M3 stage), auer rods present (most common stage associated with DIC).\n+ (8;21) AML with maturation stage (M2 Stage)\n+ (16;16) associated with best prognosis.', 'role': 'assistant'}]