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
C-reactive protein are - 
Select and explain. 
A. Alpha-1 globulin, B. Beta-1 globulin, C. Alpha-2 globulin, D. Non-specific inflammatory protein
B: Beta-1 globulin
Answer: B: Beta-1 globulin 
Explanation: They are abnormal beta-1-globulins that precipitates with somatic C antigen of S.pneumoniae seen in acute phase pneumonia. REF:Textbook of microbiology, Ananthanarayan, and Paniker. Page no.: 222