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
Extraction of disto-angular impaction of mandibular 3rd molar can cause: 
Select and explain. 
A. Slippage in lingual pouch, B. # of ramus of mandible, C. Excessive Haemorrhage, D. Dry socket
B: # of ramus of mandible
Answer: B: # of ramus of mandible 
Explanation: None