This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Childhood tumors, Subject name: Pediatrics
[{'content': "All the following genetic syndromes are associated with Wilm's tumor except \nSelect and explain. \nA. WAGR, B. Opsoclonus-myoclonus-ataxia syndrome, C. Denys Drash syndrome, D. Beckwith-Wiedemann syndrome", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Children with some genetic syndromes are predisposed to developing Wilms tumor. These include WAGR , Denys Drash syndrome (renal failure, renal mesangial sclerosis, male hermaphroditism, WTl missense mutation) and Beckwith-Wiedemann syndrome (hemihyperophy, macroglossia, omphalocele, organomegaly, del llp15.5-WT2). Opsoclonus-myoclonus-ataxia syndrome is associated with neuroblastoma Opsclonus-myoclonus syndrome is a rare paraneoplastic disorder, often associated with malignancies including of childhood derived from the <a href=" nervous system</a>. Reference: Essential pediatrics; O.P.Ghai; Childhood Malignancies; Page no: 617', 'role': 'assistant'}]