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: Surgery
[{'content': 'Antibiotics should be given when with surgery for prophylaxis - \nSelect and explain. \nA. 1 hour before, B. 1 hour after, C. 2 hours before, D. 2 hours after', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., 1 hour before Intravenous administration at Induction of Anesthesia is optimal", 'role': 'assistant'}]