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': 'Child begins to sit with support, able to transfer objects from one hand to another hand and speak monosyllabic babbles at the age of – \nSelect and explain. \nA. 3 months, B. 6 months, C. 9 months, D. 12 months', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]