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': 'Which of the following respiratory conditions is most alarming during patient sedation in dental clinic? \nSelect and explain. \nA. Apnea, B. Dyspnea, C. Hyperapnea, D. Tachyopnea', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]