This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
[{'content': 'Neuraminidase inhibitor - \nSelect and explain. \nA. Oseltamivir, B. Amantadine, C. Enfuviide, D. Formivirsen', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Oseltamivir o Oseltamivir acts by inhibiting influenza virus neuraminidase enzyme which is needed for release of progeny virions from the infected cell.", 'role': 'assistant'}]