This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Orthopaedics
[{'content': "As per Anderson and D'Alonzo classification the most dangerous type of odontoid fracture is \nSelect and explain. \nA. Type I, B. Type II, C. Type III, D. Type IV", 'role': 'user'}, {'content': "Answer: B \nExplanation: Anderson and D'Alonzo classification for odontoid fracture\xa0\nType I : Avulsion of tip .\nType II : Fracture at junction of odontoid process and axis.\nType III : Fracture through the body of axis.\nTreatment according to classification\xa0\nType I : Conservatively\nType II : Most dangerous type, treated with screw fixation\nType III : Conservatively", 'role': 'assistant'}]