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
Blow up out fracture of zygomatic arch cause 
Select and explain. 
A. Anosmia, B. Diplopia, C. Exophthalmous, D. Epistaxis
B: Diplopia
Answer: B: Diplopia 
Explanation: Blow out fracture is the fracture of floor due to blunt trauma. Floor is formed of zygomatic arch ,maxillary bone and small palatine bone Refer khurana 6/e 403