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': "Puerperal pyrexia is fever for 24 hours or more after child bih if temperature is more than : \nSelect and explain. \nA. 99' F, B. 99.5deg F, C. 100deg F, D. 100.4deg F", 'role': 'user'}, {'content': 'Answer: D \nExplanation: 100.4deg F', 'role': 'assistant'}]