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: ENT
Endolymphatic duct drains into - 
Select and explain. 
A. subdural space, B. Extradural space, C. Subarachnoid space, D. Sacculus
B: Extradural space
Answer: B: Extradural space 
Explanation: None