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': 'Translocation of bcr-abl gene is characteristically seen in - \nSelect and explain. \nA. Chronic myeloid leukemia, B. Acute myeloid leukemia, C. Chronic lymphatic leukemia, D. Acute lymphatic leukemia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]