Which is not a tumour marker -: (A) Carcinoembryonic antigen (CEA), (B) Human Chorionic Gonadotropin (hCG), (C) β2Microglobulin, (D) α Fetoprotein (AFP)
Answer is C. Note : β2 microglobulin (Monoclonal immunoglobulin) is used in multiple myeloma.