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': 'A 20 year - old male has features of acute renal failure. Blood examination shows thrombocytopenia and Hb-10 gm%. Likely cause is - \nSelect and explain. \nA. Haemolytic uremic syndrome, B. Hereditary spherocytosis, C. Haemolytic crises, D. Chronic glomerulonephritis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]