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: Anaesthesia
[{'content': 'Post spinal headache is due to – \nSelect and explain. \nA. Meningitis, B. Encephalitis, C. CSF leak, D. Increased ICT', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Spinal headache (Post dural puncture headache) is due to CSF leak.', 'role': 'assistant'}]