This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cranial cavity, Subject name: Anatomy
In the fracture of optic canal, which of the following pairs of structures is most likely to be damaged? 
Select and explain. 
A. Optic nerve and ophthalmic vein, B. Ophthalmic vein and ophthalmic nerve, C. Ophthalmic aery and optic nerve, D. Ophthalmic nerve and optic nerve
C: Ophthalmic aery and optic nerve
Answer: C: Ophthalmic aery and optic nerve 
Explanation: The optic canal transmits the optic nerve and ophthalmic aery. The ophthalmic nerve and ophthalmic vein enter the orbit through the superior orbital fissure.