This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
Organ of corti is located IN- 
Select and explain. 
A. Membranous labyrinth, B. Bony Labyrinth, C. Middle ear, D. Medulla oblongata
A: Membranous labyrinth
Answer: A: Membranous labyrinth 
Explanation: Ans. is 'a' i.e., Membranous labyrinth o Organ of corti is located on Basilar membrane of cochlear duct, which is a part of membranous labyrinth.