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: Dental
1st evidence of calcification of Mandibular Lateral incisor occurs 
Select and explain. 
A. 3-4 months, B. 4-6 months, C. 5-7 months, D. None of the above
A: 3-4 months
Answer: A: 3-4 months 
Explanation: None