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: Pediatrics
[{'content': "Most common presentation of a child with Wilm's tumour is \nSelect and explain. \nA. Hematuria, B. Hypertension, C. Asymptomatic abdominal mass, D. Abdominal pain", 'role': 'user'}, {'content': "Answer: C \nExplanation: Most common initial clinical\xa0presentation\xa0for\xa0Wilm's tumour is incidental discovery of Asymptomatic abdominal mass by parents while bathing an affected child or by physician during routine physical examination.", 'role': 'assistant'}]