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
Most common site of CSF Rhinorrhoea is 
Select and explain. 
A. Ethmoidal sinus, B. Frontal sinus, C. Petrous bone, D. Cribriform plate
D: Cribriform plate
Answer: D: Cribriform plate 
Explanation: None