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
In the extraoral technique for mandibular nerve
block the needle after contacting the pterygoid plate is directed 
Select and explain. 
A. Anteriorly, B. Posteriorly, C. Superiorly, D. Inferiorly
B: Posteriorly
Answer: B: Posteriorly 
Explanation: None