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': 'Pincer grasp is attained at months - \nSelect and explain. \nA. 4, B. 10, C. 12, D. 18', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., 10", 'role': 'assistant'}]