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
Opening of mental foramen is directed in: 
Select and explain. 
A. Forward and medial direction., B. Forward and lateral direction., C. Backward and medial direction., D. Backward and lateral direction
D: Backward and lateral direction
Answer: D: Backward and lateral direction 
Explanation: None