This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Anatomy
[{'content': 'Subarachnoid block as anaesthesia is contraindicated in \nSelect and explain. \nA. Haemophilia, B. Burgers disease, C. Atherosclerotic gangrene, D. Full stomach', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Worried about epidural hematoma', 'role': 'assistant'}]