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': 'Medical adrenalectomy can be done by: September 2012 \nSelect and explain. \nA. Vincristine, B. Vinblastine, C. Mitotane, D. Methotrexate', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C i.e. Mitotane', 'role': 'assistant'}]