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 of the following are true of antrochoanal polyp except - \nSelect and explain. \nA. Common in children, B. Single & Unilateral, C. Bleeds on touch, D. Treatment involves Avulsion', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Nasal bleeding is not a feature of antrochoanal polyp.', 'role': 'assistant'}]