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': 'Treatment of tetanus A/E- \nSelect and explain. \nA. Clindamycin, B. Doxycycline, C. Metronidazole, D. Penicillin', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]