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: Medicine
[{'content': 'Pontine Stroke is associated with all of the following signs, except: \nSelect and explain. \nA. Bilateral pin point pupil, B. Pyrexia, C. Vagal palsy, D. Quadriparesis', 'role': 'user'}, {'content': "Answer: C \nExplanation: Pontine hemorrhage is not associated with vagal palsy. Bilateral pin point pupil, pyrexia and quadriparesis are characteristic features of pontine hemorrhage. Ref: Plum and Posner's Diagnosis of Stupor and Coma, Jerome B. Posne, Fouh Edition, Chapter 4, Page 167; Harrison's Principles of Internal Medicine, 16th Edition, Page 1630, 2391.", 'role': 'assistant'}]