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: ENT
[{'content': "The diagnosis in a patient with 6th nerve palsy, retro orbital pain and persistent ear discharge is - \nSelect and explain. \nA. Gradenigo's syndrome, B. Sjogrens syndrome, C. Frey's syndrome, D. Rendu osler weber disease", 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]