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: Biochemistry
[{'content': 'Major component of DNA \nSelect and explain. \nA. Histone, B. Repressor, C. Deoxyribonucleotides, D. Inducer', 'role': 'user'}, {'content': 'Answer: C \nExplanation: DNA is a polymer of deoxyribonucleotides.', 'role': 'assistant'}]