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': 'Hangman fracture is \nSelect and explain. \nA. Sublucation of C5 over C6, B. Fracture dislocation of C2, C. Fracture dislocation of ankle joint, D. Fracture of odontoid', 'role': 'user'}, {'content': "Answer: B \nExplanation: Hangman fracture - through pedicle and lamina of C2 veebra / Spondylolisthesis of C2 over C3Jefferson's fracture - through body of C1 veebraClay Shoveler fracture - Avulsion spinous process of T1 > C7 veebra(Refer: Mohindra's Fundamentals of Ohopedics, 2nd edition, pg no. 222)", 'role': 'assistant'}]