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
Promontory seen in the middle ear is- 
Select and explain. 
A. Jugular bulge, B. Basal turn of cochlea, C. Semicircular canal, D. Head of incus
B: Basal turn of cochlea
Answer: B: Basal turn of cochlea 
Explanation: Promontory is seen in the medial wall of middle ear and is due to basal coil of cochlea.