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': '"Sleep apnoea", is defined as a temporary pause in breathing during sleep lasting at least \nSelect and explain. \nA. 40 seconds, B. 30 seconds, C. 20 seconds, D. 10 seconds', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]