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
According to Tweed inclination of lower incisors by 1° labially increases the arch length by 
Select and explain. 
A. 0.5 mm, B. 0.8 mm, C. 1.0 mm, D. 1.2 mm
B: 0.8 mm
Answer: B: 0.8 mm 
Explanation: None