This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neoplasms of the Kidney, Subject name: Pediatrics
[{'content': "Most common presenting symptom of wilm's tumor- \nSelect and explain. \nA. Haematuria, B. Asymptomatic abdominal mass, C. Abdominal pain, D. Headache", 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Asymptomatic abdominal massWilm's tumor (Nephroblastoma)o Most common malignant tumor of kidney,o 80% of tumor present below 5 year of age.Presentiono Asymptomatic abdominal mass(M.C.).o Haematuria( 10-25%).o Hypertension (25%).o Abdominal pain (30%).o Fever (20%).", 'role': 'assistant'}]