This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Surgery
[{'content': 'Aerial enhancement and venous phase washout in a liver mass larger than 2 cm is diagnostic for \nSelect and explain. \nA. Hemangioma, B. Focal nodular hyperplasia, C. Adenoma, D. Hepatocellular carcinoma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: .', 'role': 'assistant'}]