This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Head and neck, Subject name: Anatomy
[{'content': 'Which of the following structure is not related to cavernous sinus? \nSelect and explain. \nA. Abducent nerve, B. Optic nerve, C. Ophthalmic nerve, D. Trochlear nerve', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Five structures in lateral wall of cavernous sinus1. Oculomotor nerve 2. Trochlear nerve 3. Ophthalmic nerve 4. Maxillary nerve 5. Trigeminal ganglion Note: Internal carotid aery wrapped in its venous and sympathetic plexus along with abducent nerve passes through the center of the cavernous sinus.', 'role': 'assistant'}]