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': "Trotter's triad is seen in: \nSelect and explain. \nA. Angiofibroma, B. Nasopharyngeal carcinoma, C. Laryngeal carcinoma, D. Growth in fossa of Rosenmuller", 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]