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
C-reactive proteins are -a) Alpha-1 globulinb) Beta-1 globulinc) Alpha-2 globulind) Non-specific inflammatory protein 
Select and explain. 
A. bd, B. d, C. ab, D. ac
A: bd
Answer: A: bd 
Explanation: None