This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nasal Polyposis, Subject name: ENT
[{'content': 'All of the following are true of antrochoanal polyp except: \nSelect and explain. \nA. Common in young, B. Single and unilateral, C. Bleeds on touch, D. Treatment involves FESS', 'role': 'user'}, {'content': 'Answer: C \nExplanation: (c) Bleeds on touch(Ref. Scott Brown, 6th ed., 4/10/14)They have very poor blood supply because of which they do not bleed on touch.', 'role': 'assistant'}]