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: ENT
[{'content': 'Most common fractured bone \nSelect and explain. \nA. Nasoethmoid bone, B. Nasal bone, C. Zygomatic bone, D. Mandible', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Facial trauma, also called maxillofacial trauma, is any physical trauma to the face.\n\nCommonly injured facial bones include the nasal bone, maxilla, and the mandible.\n\nThe mandible may be fractured at its symphysis, body, angle, ramus, and condyle.\n\nNasal fracture is the most common facial fracture and the third most common fracture of the skeleton overall.\nFacial fractures occur for a variety of reasons related to sports participation:\n\ncontact between players (eg, a head, fist, elbow); contact with equipment (eg, balls, pucks, handle bars); or contact with the environment,\xa0obstacles, or a playing surface (eg, wrestling mat, gymnastic equipment, goalposts, trees).\n\nFacial fractures may be associated with head and cervical spine injuries and it requires a significant amount of force.', 'role': 'assistant'}]