This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
Structures passing through the centre of the cavernous sinus 
Select and explain. 
A. Occulomotor nerve, B. Trochlear nerve, C. Maxillary nerve, D. Abducent nerve
D: Abducent nerve
Answer: D: Abducent nerve 
Explanation: None