This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Development period- week 1,2,3,4, Subject name: Anatomy
[{'content': 'The first teeth to appear in an infant is: \nSelect and explain. \nA. Upper incissors, B. First molar, C. Canine, D. Lower central incisor', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Eruption of Deciduous or Milk Teeth Lower central incisors: 6-9 months. Upper incisors: 8-10 months. Lower lateral incisors: 12-20 months. First molar: 12-20 months. Canines: 16-20 months. Second molars: 20-39 months.', 'role': 'assistant'}]