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
Antimicrobial agent by inhibition of cell wall wall synthesis is 
Select and explain. 
A. Erythromycin, B. Tetracycline, C. Lomefloxacin, D. Cefepime
D: Cefepime
Answer: D: Cefepime 
Explanation: Refer KDT 6/e p 668 Cefepime is a beta lactam antibiotic It acts by inhibiting cell wall synthesis