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: Pathology
[{'content': "Patient comes with pain in pharyngeal region and is having carcinoma of nasopharynx. The diagnosis is ? \nSelect and explain. \nA. Homer's syndrome, B. Glossopharyngeal neuralgia, C. Trotter's syndrome, D. Eagles syndrome", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]