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: Medicine
[{'content': 'Arsenic is used in treatment of: \nSelect and explain. \nA. Acute promyelocytic leukemia, B. A.L.L, C. CML, D. Transient myeloproliferative disorder', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer is A (Acute promyelocytic leukemia)', 'role': 'assistant'}]