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': 'Association fibers are: \nSelect and explain. \nA. Uncinate fasciculus, B. Cingulum, C. Superior longitudinal fasciculus, D. All', 'role': 'user'}, {'content': 'Answer: D \nExplanation: A i.e. Uncinate fasciculus; B i.e. Cingulum; C i.e. Superior longitudinal fasciculus', 'role': 'assistant'}]