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: Surgery
Tumour marker of Hepatocellular carcinoma ? 
Select and explain. 
A. AFP, B. CEA, C. HCG, D. CA-19
A: AFP
Answer: A: AFP 
Explanation: Ans. is 'a' i.e. AFP