This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Chemotherapy, Subject name: Pharmacology
[{'content': 'Which of the following antibiotic acts by inhibiting cell wall synthesis \nSelect and explain. \nA. Cefepime, B. Aminoglycoside, C. Erythromycin, D. Doxycycline', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ref KDT 6/e p669 Cefepime is a beta lactam antibiotic. It acts by inhibiting cell wall synthesis', 'role': 'assistant'}]