This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Larynx, Subject name: ENT
[{'content': 'High tracheostomy is indicated in.......oflarynx: \nSelect and explain. \nA. Scleroma, B. Tuberculosis, C. Carcinoma, D. Multiple papilloma', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans: c (Carcinoma)Ref: Rober's Brown 5,h/e p. 2,108,8", 'role': 'assistant'}]