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: Medicine
[{'content': 'fix of choice hi chronic alcoholic with normal RBS,normal UN, but altered sensorium \nSelect and explain. \nA. Vit. B1 injection IM, B. Dextrose 50%, C. Dextrose 10%, D. Normal saline', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]