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': 'The function of stria vascularis is: \nSelect and explain. \nA. To produce perilymph, B. To absorb perilymph, C. To maintain electric milieu of endolymph, D. To maintain electric milieu of perilymph', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Scala vestibuli and scala tympani are filled with perilymph, whereas scala media/membranous cochlea is filled with endolymph.', 'role': 'assistant'}]