This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
[{'content': 'Treatment of choice for glue ear Is: \nSelect and explain. \nA. Conservative, B. Myringotomy with cold knife, C. Myringotomy with ventilation tube insertion, D. Myringotomy with diode laser', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Treatment of glue ear where thick secretions accumulate in middle ear would be drainage through a myringotomy and long-term aeration of middle ear through a grommet. Options (b) and (d) are only myringotomy which will soon close leading to recurrence of disease.', 'role': 'assistant'}]