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: Medicine
[{'content': 'Maximum increase in α-fetoprotein increased is seen with - \nSelect and explain. \nA. Hepato-cellular-carcinoma, B. Benign-mature teratoma, C. Chorio-carcinoma, D. Teratoma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]