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': 'By____________years all milk teeth are erupted ? \nSelect and explain. \nA. 1.5, B. 2, C. 2.5, D. 3', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., 2.5 o Between 20-30 months all milk (primary) teeth are erupted.", 'role': 'assistant'}]