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: Pediatrics
[{'content': "Which of the following is not a sign of good attachment during breastfeeding \nSelect and explain. \nA. Mouth of the baby should be wide open, B. Part of areola should be in baby's mouth, C. Lower lip of baby should be everted, D. Chin of the baby should touch mother's breast", 'role': 'user'}, {'content': "Answer: B \nExplanation: Whole of areola should be in baby's mouth except a small part of upper areola which may be visible.", 'role': 'assistant'}]