This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fetus, Subject name: Gynaecology & Obstetrics
[{'content': 'Meconium should be excreted by a newborn by ... days? \nSelect and explain. \nA. 2, B. 3, C. 6, D. 4', 'role': 'user'}, {'content': "Answer: A \nExplanation: Most of the newborns pass urine by 24hrs and Meconium by 48hrs. If not, it requires observation and investigations. Refer page no 420 of Text book of obstetrics,DC DUTTA'S ,9thedition.", 'role': 'assistant'}]