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
[{'content': 'Site where endolymph is seen - \nSelect and explain. \nA. Scala vestibuli, B. Scala media, C. Helicotrem, D. Organ of corti', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]