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: Microbiology
[{'content': "All the following are true about nosocomial infections except- \nSelect and explain. \nA. May manifest within 48 hours of admission, B. May develop after discharge of patient from the hospital, C. Denote a new condition which is unrelated to the patient's primary conditions, D. May already present at the time of admission", 'role': 'user'}, {'content': 'Answer: D \nExplanation: "The term Nosocomial infection is applied to infection developing in hospitalized patients". These infections neither present nor in incubation, at the time of patient\'s admission"\nSuch infections may become evident during their stay in the hospital or sometimes only after their discharge.', 'role': 'assistant'}]