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
Which of the following is seen in cryoglobulinemia 
Select and explain. 
A. IgG, B. IgM, C. IgA, D. IgE
B: IgM
Answer: B: IgM 
Explanation: Abnormal Ig Bence Jones proteins Light chain of Ig ( Kappa or Lambda )WaldenstormmacroglobulinemiaIg M Heavy chain disease Fc pa of heavy chain CryoglobulinemiaPrecipitate at low temperature (Ref: Ananthanarayan 9th edition, 96-98)