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
[{'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 sinus\n1. Oculomotor nerve\n2. Trochlear nerve\n3. Ophthalmic nerve\n4. Maxillary nerve\n5. Trigeminal ganglion\nNote: Internal carotid artery wrapped in its venous and sympathetic plexus along with abducent nerve passes through the center of cavernous sinus.', 'role': 'assistant'}]