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: Anatomy
True about internal ear anatomy 
Select and explain. 
A. Three semicircular canals here 6 openings into the vestibule, B. The angle between anterior & posterior SCC is 180deg, C. Vestible is the central chamber, D. Spiral canal makes 2 turns
C: Vestible is the central chamber
Answer: C: Vestible is the central chamber 
Explanation: C i.e. Vestible is the central chamber