This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Medicine
[{'content': 'CURB 65 criteria include all except \nSelect and explain. \nA. Age more than or equal to 65, B. RR more than 30/min, C. Systolic BP more than 90mmHg, D. BUN level more than 7mmol/L', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Image ref Davidsons 23e p563', 'role': 'assistant'}]