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: ENT
[{'content': 'Laryngofissure is - \nSelect and explain. \nA. Opening the larynx in mid line, B. Making window in thyroid cartilage, C. Removal of arytenoids, D. Removal of epiglottis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]