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-reactive proteins are -a) Alpha-1 globulinb) Beta-1 globulinc) Alpha-2 globulind) Non-specific inflammatory protein \nSelect and explain. \nA. bd, B. d, C. ab, D. ac', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]