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': 'A woman with infertility receives an ovary transplant from her sister who is an identical twin. What type of graft it is ? \nSelect and explain. \nA. Xenograft, B. Autograft, C. Allograft, D. Isograft', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Graft\n\nA tissue graft is a medical procedure in which tissue from a donor is used to replace missing or damaged tissue on a patient ( recipient).\n\nTerminology of grafts :', 'role': 'assistant'}]