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: The baby may pass meconium in utero or soon after birth, but all healthy newborn babies must evacuate within 24 hours of birth. During the first 2..3 days the baby passes black, tarry (like tar) 'meconium' stools which are followed by greenish (transitional) stools for the next 1 or 2 days.\nThe normal breastfed baby usually passes 4-8 semisolid sticky golden yellow stools everyday. Some babies may pass stools after each feed due to the 'exaggerated' gastrocolic reflex. The stools are often very small (at times like drippings of the birds) with normal consistency. The babies continue to gain weight.\nTar means a thick, sticky, brown to black liquid with a pungent odor, obtained by the destructive distillation of wood, coal, peat, shale, etc.", 'role': 'assistant'}]