This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Rickets, Subject name: Pediatrics
[{'content': 'Widening of epiphysis is seen in: \nSelect and explain. \nA. Scurvy, B. Rickets, C. Achondroplasia, D. Osteopetrosis', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Rickets- Wrist widening (splaying), fraying & cupping Scurvy- pencil thin outline of coex, Wimberger sign, subperiosteal hemorrhage Achondroplasia- trident hand, sho stature, champagne glass pelvis on X ray Osteopetrosis- bone appears white/ Marble bone disease Radiological feature of rickets:', 'role': 'assistant'}]