This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of nucleic acids, Subject name: Biochemistry
[{'content': 'Nucleotide includes \nSelect and explain. \nA. Base + sugar, B. Base + phosphate group, C. Base + sugar + phosphate group, D. None', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Nucleotides are the phosphate esters of nucleosides. Base plus pentose sugar plus phosphoric acid is a nucleotide. REF : DM.VASUDEVAN.TEXTBOOK; SEVENTH EDITION ; PAGE NO : 561', 'role': 'assistant'}]