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: Anaesthesia
[{'content': 'Which of the are the following contraindication for halothane used: \nSelect and explain. \nA. Male sex, B. Middle age, C. Recent halothane use, D. All', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Recent halothane use', 'role': 'assistant'}]