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: Microbiology
[{'content': 'True about interferon is - \nSelect and explain. \nA. Host protein, B. Viral protein, C. Inactivated by nucleases, D. Virus specific', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Interferon are host coded proteins that are produced on induction by viral or non-viral inducers.', 'role': 'assistant'}]