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
Lowest chance of recipient failure in transplant is seen in: 
Select and explain. 
A. Allograft, B. Isograft, C. Xenograft, D. Heterotropic graft
B: Isograft
Answer: B: Isograft 
Explanation: Ans. (b) IsograftRef: Bailey 26th ed, page 1426* Isograft: A graft between identical donor such as identical twin* Hence the rejection rate is the lowest