This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology, 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: An abnormal protein that precipitates with the somatic O antigen of streptococcus pneumoniae appears in the acute phase sera of pneumonia but disappear during convalescence. It is known as C-reactive protein. its apparent antibody like the rethe relationship to the C antigen of streptococcus pneumoniae is only fouitous. it is not an antibody produced as a result of pneumococcal infection. Reference : Anathanarayan & paniker's 9th edition, pg no: 222, 223 <\\p>", 'role': 'assistant'}]