This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pediatric Ohopedics, Subject name: Orthopaedics
[{'content': 'Thurston Holland sign is seen in: \nSelect and explain. \nA. Type I, B. Type II, C. Types III, D. Type IV', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Thurstan Holland fragment (or Thurstan Holland sign)- radiological sign depicting a triangular poion of the metaphysis remaining with the epiphysis in a physeal fracture. This fragment indicates a Salter Harris type 2 fracture', 'role': 'assistant'}]