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': 'A female diabetic having severe ear pain and granulation tissue in external ear with Facial palsy is due to: \nSelect and explain. \nA. Malignant otitis externa, B. Herpes zoster otitis, C. Otomycosis, D. None', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Malignant otitis externa - can cause destruction of tissues of canal, pre and post auricular region by various enzymes like lecithinase and hemolysis. Infection can spread to skull base and jugular foramen causing multiple cranial nerve palsies in which most common is facial nerve palsy.', 'role': 'assistant'}]