This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of orbit, Lids and lacrimal apparatus, Subject name: Ophthalmology
Enophthalmos caused by fracture of- 
Select and explain. 
A. Floor of orbit, B. Medial wall of orbit, C. Lateral wall of orbit, D. Roof of orbit
A: Floor of orbit
Answer: A: Floor of orbit 
Explanation: *Post traumatic enophthalmos is caused by blow out fracture trough the floor of orbit. Ref: Khurana 7th/e p.424