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: Surgery
The latent period in distraction osteogenesis is 
Select and explain. 
A. 4-6 weeks, B. 5-7 days, C. 6-8 months, D. 4 months
B: 5-7 days
Answer: B: 5-7 days 
Explanation: None