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: Pathology
38-year-old man Babbu, a chronic alcoholic, presents with pain in the abdomen. On examination, his liver is enlarged and serum alpha-fetoprotein is elevated. The most likely diagnosis is - 
Select and explain. 
A. Hepatocellular carcinoma, B. Liver cell hyperplasia, C. Hepatic adenoma, D. Hepatitis
A: Hepatocellular carcinoma
Answer: A: Hepatocellular carcinoma 
Explanation: Increase in α feta protein is associated with hepatocellular carcinoma and chronic alcoholism is a well known and common predisposing factor.

Clinical Feature

In most cases, hepatocellular carcinoma presents as an ill defined upper abdominal pain, malaise, fatigue and weakness and sometimes awareness of an abdominal mass or abdominal fullness.
On palpation, the enlarged liver may be felt as a
Unifocal usually large mass
Multifocal widely distributed nodules of variable size.
Diffuse infiltrative cancer.