This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Brain , Subject name: Anatomy
[{'content': 'First commissure to develop \nSelect and explain. \nA. Corpus callosum, B. Anterior commissure, C. Hippocampus, D. None of the above', 'role': 'user'}, {'content': "Answer: B \nExplanation: The anterior commissure,connecting the archipallia(olfactory bulbs,piriform area and anterior pas of temporal lobes)of the two sides. REF.B D Chaurasia's Human Anatomy vol.3,fifth edition,pg.419", 'role': 'assistant'}]