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': 'The following structure is transmitted via foramen ovale \nSelect and explain. \nA. Greater petrosal nerve, B. Mandibular nerve, C. Oculomotor nerve, D. Sympathetic nerve fibres', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]