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': 'Renal transplantation is most commonly done in - \nSelect and explain. \nA. Chr. glomerulonephritis, B. Bilateral staghorn calculus, C. Horse shoe kidney, D. Oxalosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Renal transplantation is the preferred treatment for many patients with end stage renal disease (ESRD), because it provides a better quality of life for them than dialysis.\n\n\nThe most common causes of ESRD (in decreasing order) are:\n\n\nDiabetes mellitus\nHypertension\nGlomerulonephritis', 'role': 'assistant'}]