This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunity, Subject name: Pathology
[{'content': 'Autologous transplant means? \nSelect and explain. \nA. Graft from Individuals of same genetic constitution, B. Graft from self, C. Graft from Twins, D. Graft from members of different species', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Graft from self Based on donor, graft may be1. Autograft (autogenic graft): Graft from self.2. Isograft (syngraft): Graft from genetically identical person, e.g. identical twin.3. Allograft (homograft or allogenic graft): Graft from genetically unrelated member of same species.4. Xenograft (heterograft): Graft from different species.", 'role': 'assistant'}]