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 Central Incisor is seen in 
Select and explain. 
A. 10 months, B. 2 months, C. 3-4 months, D. 6-8 months
C: 3-4 months
Answer: C: 3-4 months 
Explanation: None