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: Gynaecology & Obstetrics
[{'content': 'Anti-D should be given following Rh+ delivery within: \nSelect and explain. \nA. 6 hours, B. 24 hours, C. 72 hours, D. 7 days', 'role': 'user'}, {'content': 'Answer: C \nExplanation: 72 hours', 'role': 'assistant'}]