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
Oseltamivir acts by inhibition which viral enzyme- 
Select and explain. 
A. Neuraminidase, B. Dismutase, C. Lyase, D. Endonuclease
A: Neuraminidase
Answer: A: Neuraminidase 
Explanation: Ans. is 'a' i.e., Neuraminidase * Oseltamivir acts by inhibiting influenza virus neuraminidase enzyme which is needed for release of progeny virions from the infected cell. Spread of the virus in the body is thus checked.