This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anti Microbial, Subject name: Pharmacology
[{'content': 'All of the following drug inhibit the cell wall synthesis except: \nSelect and explain. \nA. Penicillin, B. Fosfomycin, C. Vancomycin, D. Tetracycline', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D. TetracyclineDrugs inhibiting the cell wall synthesis- beta lactam, bacitracin, vancomycin, cycloserine, Fosfomycin. Tetracycline acts via protein synthesis inhibition.', 'role': 'assistant'}]