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': 'Androphonia is treated by \nSelect and explain. \nA. Type 1 thyroplasty, B. Type 2 thyroplasty, C. Type 3 thyroplasty, D. Type 4 thyroplasty', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]