This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Brain Imaging: Anatomy, Trauma, and Tumors, Subject name: Radiology
[{'content': 'Investigation of choice for subdural hemorrhage is? \nSelect and explain. \nA. Angiography, B. NCCT, C. CECT, D. MRI', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) NCCTRef Appendix-81 for "Traumatic intracranial hemotomas', 'role': 'assistant'}]