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: Anaesthesia
Post dural puncture headache is 
Select and explain. 
A. Retro-orbital, B. Frontal, C. Occipital, D. Temporal
C: Occipital
Answer: C: Occipital 
Explanation: Post dural puncture headache is occipital > frontal > retroorbital.