This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Transplantation, Subject name: Surgery
[{'content': 'Milan Criteria is used for \nSelect and explain. \nA. Liver transplant, B. Kidney transplant, C. Lung Transplant, D. Heart transplant', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) Liver transplantRef: Bailey and Love 27th edition, Page 1555Milan criteria is for liver transplant in HCC patients:* Single nodule <5cm or less than 3 nodules, the largest of which is <3cm* Those who meet these criteria - recurrence rate less than 20%* Those who fall outside, recurrence rate 60%', 'role': 'assistant'}]