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': 'Find the sequence in which the following milestones are attained? \nSelect and explain. \nA. B → D → A → C, B. A → D → B → C, C. B → A → D → C, D. A → B → D → C', 'role': 'user'}, {'content': 'Answer: D \nExplanation: A\xa0→ Simles at mirror image\xa0→ 6 months\nB\xa0→ Sits without support\xa0→ 8 months\nD\xa0→ Waves bye-bye\xa0→ 9 months\nC\xa0→ Mature pincer grasp\xa0→ 12 months', 'role': 'assistant'}]