This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Surgery
[{'content': 'Blowout injury refers to what \nSelect and explain. \nA. Fracture of orbit, B. Fracture of maxillary antrum, C. Fracture of temporal bone, D. Open Fracture from inside out of a long bone', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The floor of orbit is its weakest wall and in blunt trauma such as a blow from a fist ,it is often fractured without fractures of the other walls.This is called blow-out fracture Bailey & Love ,26th,627.', 'role': 'assistant'}]