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
Drug which doesn't inhibit nucleic acid synthesis? 
Select and explain. 
A. Rifampicin, B. Fluoroquinolone, C. Nitrofurantoin, D. Linezolid
D: Linezolid
Answer: D: Linezolid 
Explanation: Ans. D. Linezolida. Linezolid - Inhibits protein synthesis via binding to 50s subunit on ribosomes.b. Inhibition of Nucleic Acid Synthesis:c. Rifamycins- Inhibit bacterial RNA polymerased. Fluoroquinolones- Inhibit enzymes (DNA Gyrase) that are required for bacterial DNA synthesise. Nitrofurantoin- Generates metabolites that are incorporated into DNA strands, making more prone to breakage