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': "Trotter's triad includes all except - \nSelect and explain. \nA. Sensory disturbance over distribution of 5th cranial nerve, B. Diplopia, C. Conductive deafness, D. Palatal palsy", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Nasopharyngeal can cause conductive deafness (eustachian tube blockage) ipsilateral temporoparietal neuralgia (involvement of CN V) and palatal paralysis (CN X) collectively called Trotters triad.\nRef. Dhingra 6/e, p 251', 'role': 'assistant'}]