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': "Gradenigo's syndrome involves the following cranial nerves: \nSelect and explain. \nA. IV, VII, B. V, VI, C. VI, DC, D. VII, VIII", 'role': 'user'}, {'content': "Answer: B \nExplanation: Gradenigo's syndrome, which is characterised by the triad of suppurative otitis media, pain in the distribution of the trigeminal nerve, and abducens nerve palsy may give rise to potentially fatal complications", 'role': 'assistant'}]