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': 'Corpus callosum \nSelect and explain. \nA. Projection fibers, B. Commissoral fibers, C. Association fibers, D. None', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Corpus callosum is the largest commissure of brain, interconnecting two identical/ corresponding areas of cerebral hemispheres.Other commissures are:Anterior commissurePosterior commissureHippocampal commissureHabenular commissureNOTE: The primary visual area and hand region of primary somatosensory area of coex have no commissural fibres.(Ref: Vishram Singh textbook of clinical neuroanatomy, second edition, pg- 163)', 'role': 'assistant'}]