This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
[{'content': 'Most common cranial nerve involved in CSOM is - \nSelect and explain. \nA. V, B. VII, C. IX, D. XI', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., VII Complications of otitis mediaa. Extracranial complicationsb. Intracranial complicationso Mastoiditiso Petrositis/Gradenigo syndromeo Facial paralysiso Labyrinthitiso Osteomyelitis of temporal boneo Septicaemia or pyaemiao Meningitiso Extradural abscesso Subdural abscesso Otogenic Brain Abscesso Lateral sinus thrombophlebitiso Otitic hydrocephalus", 'role': 'assistant'}]