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': 'All are true about Adult laryngeal papilloma except- \nSelect and explain. \nA. M >F, B. Do not recur, C. Posterior half of vocal cord, D. Treatment is surgery', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]