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
According to Kaban’s protocol rate of distraction osteogenesis to regenerate a new ramus/ condyle unit is? 
Select and explain. 
A. 1 mm/day, B. 1.5 mm/day, C. 2.0 mm/day, D. 2.5 mm/day
A: 1 mm/day
Answer: A: 1 mm/day 
Explanation: None