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
Arch space for eruption of 2nd & 3rd molar created by: 
Select and explain. 
A. Apposition of Hamular processes, B. Resorption of anterior border of ramus, C. Resorption of posterior border of ramus, D. Apposition of lower border of mandible
B: Resorption of anterior border of ramus
Answer: B: Resorption of anterior border of ramus 
Explanation: None