This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
[{'content': 'Which of the following is an absolute contraindication for renal transplant? \nSelect and explain. \nA. Untreated malignancy, B. Age >65 years, C. HIV infection, D. Chronic hepatitis B or C', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Absolute contraindications to kidney transplantation Untreated malignancy Active infection Untreated HIV infection or AIDS Any condition where life expectancy is under two years Relative contraindications to kidney transplantation Comorbid condition Age >65 years Untreated coronary aery disease Obesity HIV infection Previous malignancy Chronic hepatitis B or C Ref: CLINICAL REVIEW, Renal transplantation, BMJ 2011;343:d7300 ; The Renal Association. Assessment of the potential kidney transplant recipient. 2011.', 'role': 'assistant'}]