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 Primary Upper canine is seen in 
Select and explain. 
A. 14 wk IU, B. 16 wk IU, C. 17 wk IU, D. 15 wk IU
C: 17 wk IU
Answer: C: 17 wk IU 
Explanation: None