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': 'For traumatic paraplegia investigation of choice is: \nSelect and explain. \nA. MRI For traumatic paraplegia investigation of choice is:, B. CT scan, C. X-ray, D. USG', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. MRI', 'role': 'assistant'}]