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': 'Dr.Christian Bernard is associated with? \nSelect and explain. \nA. Heart transplant, B. Renal transplantation, C. Liver transplant, D. Hair transplant', 'role': 'user'}, {'content': "Answer: A \nExplanation: ANSWER: (A) Heart transplantREF: http://en.wikipedia. or g /wiki/Chris tiaan_BarnardChristiaan Neethling Barnard (November 8,1922 - September 2, 2001) was aSouth African cardiac surgeon who performed the world's first successful human-to-human heart transplant.", 'role': 'assistant'}]