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': "'C' in C reactive protein stands for - \nSelect and explain. \nA. Capsular polysaccharide in pneumococcus, B. Concanavalin-A, C. Calretinin, D. Cellular", 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]