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': '"Blow-out" fracture of orbit involves: \nSelect and explain. \nA. Floor, B. Medial wall, C. All of the above, D. None of the above', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. All of the above', 'role': 'assistant'}]