This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nose and paranasal sinuses, Subject name: ENT
The most common site of leak in CSF rhinorrhoea is - 
Select and explain. 
A. Sphenoid sinus, B. Frontal sinus, C. Cribriform plate, D. Tegmen typmani
C: Cribriform plate
Answer: C: Cribriform plate 
Explanation: Leakage of CSF is most commonly seen in the anterior cranial fossa at the level of the cribriform plate as it is extremely thin. (Ref: Diseases of nose ear and throat; Logan Turner; pg 28)