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
[{'content': 'Site where endolymph is seen \nSelect and explain. \nA. Scala vestibule, B. Scala media, C. Helicotrema, D. Organ of coi', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Endolymph fills the entire membranous labyrinth(scala media). Ref: Dhingra 6th edition pg no:10', 'role': 'assistant'}]