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: Medicine
[{'content': 'Which of the following is recommended for culture sampling in Infective Endocarditis: \nSelect and explain. \nA. 2 culture sets separated by at-least 1 hour over 24 hours, B. 2 culture sets separated by at-least 2 hours over 24 hours, C. 3 culture sets separated by at-least 1 hour over 24 hours, D. 3 culture sets separated by at-least 2 hours over 24 hours', 'role': 'user'}, {'content': "Answer: C \nExplanation: Answer is C (3 culture sets separated by at-least 1 hour over 24 hours) Three culture sets separated from one another by at-least I hour should he obtained over 24 hours. in the absence of prior antibiotic therapy three (2-bottled) culture sets separated from one another by at-least 1 hour should be obtained from different venepuncture sites over 24 hours. If the cultures remain negative 48 to 72 hours, two or three additional blood culture sets should be obtained'", 'role': 'assistant'}]