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: Ophthalmology
[{'content': 'Which of the following is not an absolute contraindication for corneal transplantation? \nSelect and explain. \nA. TB meningitis, B. Rabies, C. Death due to unknown cause, D. SSPE', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. a. TB meningitis', 'role': 'assistant'}]