This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
[{'content': 'The most common hospital-acquired (nosocomial) infection is - \nSelect and explain. \nA. Urinary tract infection, B. Pneumonia, C. Surgical wound infection, D. Bacteremia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The most common hospital-acquired infection is urinary tract infection (UTI), which accounts for almost 40% of all nosocomial infections . Most hospital-acquired UTIs are associated with urinary catheters, a commonly used device among hospitalized patients. Ref Davidson 23rd edition pg 630', 'role': 'assistant'}]