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: Medicine
[{'content': 'Dementia in patient of chronic renal failure with chronic hemodialysis is due to - \nSelect and explain. \nA. Aluminium toxicity, B. Uremia, C. A Beta, amyloid, D. A beta amyloid deposition', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Answer- A. Aluminium toxicityPatients undergoing long-term dialysis acquire dialysis encephalopathy (or dialysis dementia), which is a subacute, progressive,and often fatal disease.Aluminium toxicity either from aluminium phosphate salts or from aluminium in the dialysate were linked to the pathogenesis of dialysis dementia.', 'role': 'assistant'}]