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': 'Nucleosides consist of? \nSelect and explain. \nA. sugar + phosphate, B. Sugar + uric acid, C. Base + sugar, D. Base + sugar + phosphate', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]