This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Trauma, Subject name: Surgery
[{'content': 'What is the ideal site to make a burr hole in a patient of head injury with rapidly deteriorating sensorium & progressive dilatation of pupil with no localizing sign? \nSelect and explain. \nA. Right temporal region, B. Left temporal region, C. Midline, D. Left parietal region', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Burr hole surgery should be done by taking into consideration side of pupillary dilatation 1. One sided pupillary dilatation: Burr hole on that side 2. Both sided pupillary dilatation: Burr hole on the side of first dilated pupil/ side with obvious external trauma. 3. No localizing sign: Burr hole on the side of dominant hemisphere i.e left temporal.', 'role': 'assistant'}]