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': 'Urinary tract infection exists when the bacterial count in 1 ml. of midstream specimen of urine is ? \nSelect and explain. \nA. 100, B. 1000, C. 104, D. 105 or over', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., 105 or over", 'role': 'assistant'}]