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
[{'content': 'Structure passing through Foramen Ovale is: \nSelect and explain. \nA. Maxillary aery, B. Mandibular nerve, C. Middle meningeal aery, D. Spinal accessory nerve', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Mandibular nerve', 'role': 'assistant'}]