This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ocular Trauma, Subject name: Ophthalmology
[{'content': 'Blow out fracture of orbit involves \nSelect and explain. \nA. Medial wall, B. Superior wall, C. Inferior wall, D. All the walls', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. (c) Inferior wallRef; Kanski 7/e, p. 873Blow out fracture is typically of the orbital floor, it may also involve the medial wall but always as a secondary involvement.', 'role': 'assistant'}]