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': 'Excision of the hyoid bone is done in \nSelect and explain. \nA. Branchial cyst, B. Branchial fistula, C. Thyroglossal cyst, D. Sublingual dermoids', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]