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
Most common cause of fracture of roof of orbit- 
Select and explain. 
A. Blow on back of head, B. Blow on parietal bone, C. Blow on the forehead, D. Blow on the upper jaw
C: Blow on the forehead
Answer: C: Blow on the forehead 
Explanation: Orbital-roof fractures are usually the result of high-energy injuries. They may be anteriorly continuous with an injury to the supraorbital rim or frontal sinus, or they may extend posteriorly to the superior orbitalfissure Ref khurana 6/e 402