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': 'Meconium is excreted by a new born till...day : \nSelect and explain. \nA. 2, B. 3, C. 6, D. 4', 'role': 'user'}, {'content': 'Answer: B \nExplanation: 3', 'role': 'assistant'}]