This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: miscellaneous, Subject name: Biochemistry
[{'content': 'In CRP, the C stands for \nSelect and explain. \nA. Canavallin A, B. Cellular, C. Chondoitin sulfate, D. C polysaccharide of streptococcus', 'role': 'user'}, {'content': 'Answer: D \nExplanation: C-reactive protein (CRP) was originally identified as binding to the phosphocholine attachment site of capsular polysaccharide (C-polysaccharide) from Streptococcus pneumoniae', 'role': 'assistant'}]