This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Orthopaedics
[{'content': 'A 4 years old child suffered from a fall on outstretched hand. X rays revealed a fracture with the fracture line at the physes with a small metaphyseal fragment. There was no epiphyseal fracture. What type of injury by Salter harris Classification is this? \nSelect and explain. \nA. I, B. II, C. III, D. IV', 'role': 'user'}, {'content': "Answer: B \nExplanation: Type II: the fracture involves the physis and a triangle of metaphyseal bone (Thurston Holland sign). This is the commonest type of epiphyseal injury accounting for 73 percent of cases over 10 years of age.(Refer: Mohindra's Fundamentals of Ohopedics, 2nd edition, pg no. 510)", 'role': 'assistant'}]