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': 'Interpeduncular fossa contains \nSelect and explain. \nA. Mammillary bodies, pineal gland, oculomotor nerve, infundibulum, B. Oculomotor nerve, mammillary bodies, infundibulum, posterior perforating substance, C. Tuber cinerium, mammillary bodies, oculomotor nerve, anterior perforating substance, D. Oculomotor nerve, mammillary bodies, optic chiasma, anterior perforating substance', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Contents of interpeduncular fossa are\xa0\xa0\n\n\xa0Infundibulum\n\xa0Mammillary bodies\n\xa0Oculomotor nerve\n\xa0Posterior perforating substance.', 'role': 'assistant'}]