This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Anatomy
Tumor marker of HCC 
Select and explain. 
A. AFP, B. Alpha fucosidases, C. DCGP, D. Carbohydrate antigen
A: AFP
Answer: A: AFP 
Explanation: Tumor markers of HCC Protein induced by Vitamin K absence (PIVKA; Des-gamma-carboxy prothrombin); glypican-3; AFP fractions Lectin fraction-3 of SFP (AFP-L3) is highly specific to HCC and also indicator of poorly differentiated histology and unourable prognosis Serum AFP level is elevated above 20ng/mp in >70% of patients with HCC Monoclonal antibody HeoPar-1(hepatocyte paraffin-1) identifies a unique antigen on hepatocyte mitochondria and is used to identify hepatocytes or HCC Ref:Sabiston 20th edition 1458-1463