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: Surgery
[{'content': 'Sympathectomy is indicated in all of the following excepta) Ischaemic ulcersb) Intermittent claudicationc) Anhidrosisd) Acrocyanosis \nSelect and explain. \nA. a, B. c, C. ac, D. bc', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Sympathectomy is used for the treatment of hyperhydrosis and would worsen anhydrosis rather than treating it.', 'role': 'assistant'}]