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: Microbiology
[{'content': 'Type of graft, best suited for renal transplantation ? \nSelect and explain. \nA. Allograft, B. Autograft, C. Xenograft, D. Isograft', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans is 'd' i.e., Isograft Although the best graft is autograft, a renal graft can obviously not be an autograft. So the best renal graft is an isograft.", 'role': 'assistant'}]