This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET 2019, Subject name: Surgery
[{'content': 'If mother is donating the kidney to her son, this is an example of:- \nSelect and explain. \nA. Autograft, B. Allograft, C. Isograft, D. Xenograft', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Types of grafts - Autograft: same person - Allograft/Homograft: from one person to another / same species - Isograft: Identical twine - Xenograft/Heterograft: Between different species - Ohotopic graft: Graft placed in normal anatomical site - Heterotrophic graft: Graft in site different from its anatomical location', 'role': 'assistant'}]