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: Ophthalmology
[{'content': 'A boy presents with diplopia and restriction of eye movements following blunt trauma to his eye. X- ray reveals blow out fracture of orbit. Which part of orbit is most likely damaged - \nSelect and explain. \nA. Superior wall, B. Inferior wall, C. Lateral wall, D. Medial wall', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Blow out fracture mainly involve orbital floor (inferior wall) & medial wall.', 'role': 'assistant'}]