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
Most impoant HLA for organ transplantation and tissue typing:- 
Select and explain. 
A. HLA-A, B. HLA-B, C. HLA-C, D. HLA-D
D: HLA-D
Answer: D: HLA-D 
Explanation: Most impoant HLA for organ transplantation and tissue typing is HLA-D. HLA matching has a relatively small but definite beneficial effect on renal allograft survival (HLA-DR > HLA-B > HLA- A) HLA MATCHING HLA antigens Are the MC cause of graft rejectionQ Anti-HLA antibodies may cause Hyperacute rejectionQ In the case of liver transplants, HLA matching does not confer an advantageQ