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': 'True about Crescent fracture is - \nSelect and explain. \nA. Anteroposterior instability with rotational stability, B. Diastasis of pubis with pubic rami fracture, C. Antero-posterior compression is the mechanism of injury, D. Fracture of the iliac bone with sacroiliac disruption', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Crescent fracture is lateral compression type II pelvic fracture (for details, read young and Burgess classification from the text of this chapter).', 'role': 'assistant'}]