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': 'Interferon is...in nature - \nSelect and explain. \nA. Protein, B. Lipid, C. Polysaccharides, D. All of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: IFN – α\xa0→\xa0Non glycosylated protein\nIFN – β\xa0→\xa0Glycoprotein\nIFN – γ\xa0→\xa0Glycoprotein', 'role': 'assistant'}]