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: Unknown
Which of the following structure is not related to cavernous sinus: 
Select and explain. 
A. Abducent nerve, B. Optic nerve, C. Ophthalmic nerve, D. Trochlear nerve
B: Optic nerve
Answer: B: Optic nerve 
Explanation: Five structures in lateral wall of cavernous sinus
1. Oculomotor nerve
2. Trochlear nerve
3. Ophthalmic nerve
4. Maxillary nerve
5. Trigeminal ganglion
Note: Internal carotid artery wrapped in its venous and sympathetic plexus along with abducent nerve passes through the center of cavernous sinus.