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: Surgery
[{'content': "Cushing's reflex is characterized by all except: \nSelect and explain. \nA. Increased systolic BP, B. Increased heart rate, C. Irregular respiration, D. None of the above", 'role': 'user'}, {'content': "Answer: B \nExplanation: Cushing's reflex is seen in cases of increased intracranial tension characterized by:\n\nIncreased systolic BP\nDecreased heart rate\xa0\nIrregular respiration", 'role': 'assistant'}]