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: Surgery
[{'content': 'The following statements about thyroglossal cyst are true, except: \nSelect and explain. \nA. Frequent cause of anterior midline neck masses in the first decade of life, B. The cyst is located within 2 cm of the midline, C. Incision and drainage is the treatment of choice, D. The swelling moves upwards on protrusion of tongue', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]