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': "Wilms' tumor is associated with the following except- \nSelect and explain. \nA. Aniridia, B. Horse-shoe kidney, C. Hemihyperophy, D. Opsoclonus", 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Opsoclonus", 'role': 'assistant'}]