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': 'What is a xenograft: \nSelect and explain. \nA. Transplantation of organs from a 1st degree relative, B. Transplantation of organs from unrelated donor, C. Transplantation of tissues from self, D. Transplantation of living tissues/organs from one species to another', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. (d) Transplantation of living tissues/organs fromone species to anotherRef: Bailey & Love 26th ed./833* Xenotransplantation is the transplantation of living cells, tissues or organs from one species to another. Such cells, tissues or organs are called xenografts or xenotransplants.* In contrast, the term allotransplantation refers to a same-species transplant. Human xenotransplantation offers a potential treatment for end-stage organ failure, a significant health problem in parts of the industrialized world.', 'role': 'assistant'}]