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: Radiology
[{'content': 'Diffuse axonal injury is characterized by lesions at \nSelect and explain. \nA. Cerebral cortex, B. Globus pallidus, C. Junction of gray and white matter, D. Medulla', 'role': 'user'}, {'content': 'Answer: C \nExplanation: DAI - lesions at junction of gray & white matter.', 'role': 'assistant'}]